{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-04-06T14:01:22.000Z","description":"Problems submitted by members of the MATLAB Central community.","is_default":true,"created_by":161519,"badge_id":null,"featured":false,"trending":false,"solution_count_in_trending_period":0,"trending_last_calculated":"2026-04-06T00:00:00.000Z","image_id":null,"published":true,"community_created":false,"status_id":2,"is_default_group_for_player":false,"deleted_by":null,"deleted_at":null,"restored_by":null,"restored_at":null,"description_opc":null,"description_html":null,"published_at":null},"problems":[{"id":43673,"title":"String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array","description":"\u003chttp://www.mathworks.com/help/matlab/characters-and-strings.html String array\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\r\n\r\nThe \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values  Part 2\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted *\u003c missing \u003e*, need to be converted to the missing values for cell arrays, denoted *{''}* (i.e., cell of empty character). \r\n\r\nRefer to the R2016b documentation for more information on the \u003chttp://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing missing values for different data types\u003e.\r\n \r\nExample: \r\n\r\n  Input:\r\n  \u003e\u003e x = string({'I','love'}); x(4) = 'MATLAB'\r\n  x = \r\n    1×4 string array\r\n      \"I\"    \"love\"    \u003cmissing\u003e    \"MATLAB\"\r\n  \r\n  Output:\r\n  \u003e\u003e y = {'I', 'love', '', 'MATLAB'}\r\n  y =\r\n    1×3 cell array\r\n      'I'    'love'    ''    'MATLAB'\r\n\r\nRelated Problems in this series:\r\n\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values   String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values   String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values   String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003e\r\n* String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array","description_html":"\u003cp\u003e\u003ca href = \"http://www.mathworks.com/help/matlab/characters-and-strings.html\"\u003eString array\u003c/a\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\u003c/p\u003e\u003cp\u003eThe \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003ePart 2\u003c/a\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted \u003cb\u003e\u0026lt; missing \u0026gt;\u003c/b\u003e, need to be converted to the missing values for cell arrays, denoted \u003cb\u003e{''}\u003c/b\u003e (i.e., cell of empty character).\u003c/p\u003e\u003cp\u003eRefer to the R2016b documentation for more information on the \u003ca href = \"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\"\u003emissing values for different data types\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003eInput:\r\n\u0026gt;\u0026gt; x = string({'I','love'}); x(4) = 'MATLAB'\r\nx = \r\n  1×4 string array\r\n    \"I\"    \"love\"    \u0026lt;missing\u0026gt;    \"MATLAB\"\r\n\u003c/pre\u003e\u003cpre class=\"language-matlab\"\u003eOutput:\r\n\u0026gt;\u0026gt; y = {'I', 'love', '', 'MATLAB'}\r\ny =\r\n  1×3 cell array\r\n    'I'    'love'    ''    'MATLAB'\r\n\u003c/pre\u003e\u003cp\u003eRelated Problems in this series:\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values\"\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/a\u003e\u003c/li\u003e\u003cli\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/li\u003e\u003c/ul\u003e","function_template":"function y = str2cell(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = string({'I','love','MATLAB'});\r\ny_correct = {'I','love','MATLAB'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = string({'I','love'}); x(5) = 'MATLAB';\r\ny_correct = {'I','love','','','MATLAB'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = string([1 NaN 2]);\r\ny_correct = {'1','','2'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = strings(3);\r\nx(1) = 'first'; \r\nx(end) = 'last';\r\ny_correct = {'first',  '',     ''\r\n             '',       '',     ''\r\n             '',       '',     'last'};\r\nassert(isequal(str2cell(x),y_correct))","published":true,"deleted":false,"likes_count":2,"comments_count":0,"created_by":12569,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":119,"test_suite_updated_at":"2016-11-23T06:24:32.000Z","rescore_all_solutions":false,"group_id":16,"created_at":"2016-11-21T03:52:19.000Z","updated_at":"2026-03-10T20:16:49.000Z","published_at":"2016-11-22T21:16:18.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/characters-and-strings.html\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003ePart 2\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e\u0026lt; missing \u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e, need to be converted to the missing values for cell arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e{''}\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (i.e., cell of empty character).\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRefer to the R2016b documentation for more information on the\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\\\"\u003e\u003cw:r\u003e\u003cw:t\u003emissing values for different data types\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eExample:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[Input:\\n\u003e\u003e x = string({'I','love'}); x(4) = 'MATLAB'\\nx = \\n  1×4 string array\\n    \\\"I\\\"    \\\"love\\\"    \u003cmissing\u003e    \\\"MATLAB\\\"\\n\\nOutput:\\n\u003e\u003e y = {'I', 'love', '', 'MATLAB'}\\ny =\\n  1×3 cell array\\n    'I'    'love'    ''    'MATLAB']]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRelated Problems in this series:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"},{"id":43674,"title":"String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array","description":"\u003chttp://www.mathworks.com/help/matlab/characters-and-strings.html String array\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data. \r\n\r\nThe \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values Part 1\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted *{''}* (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted *\u003c missing \u003e*. \r\n\r\nRefer to the R2016b documentation for more information on the \u003chttp://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing missing values for different data types\u003e. \r\n \r\n\r\nExample: \r\n\r\n  \r\n\r\n  Input:\r\n  \u003e\u003e x = {'I', '', '', 'MATLAB'}\r\n  x =\r\n    1×4 cell array\r\n      'I'    ''    ''    'MATLAB'\r\n\r\n  Output:\r\n  \u003e\u003e y = string('I'); y(4) = 'MATLAB'\r\n  y = \r\n    1×4 string array\r\n      \"I\"    \u003cmissing\u003e    \u003cmissing\u003e    \"MATLAB\"\r\n\r\nRelated Problems in this series:\r\n\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values   String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values   String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003e \r\n* String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values   String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003e\r\n","description_html":"\u003cp\u003e\u003ca href = \"http://www.mathworks.com/help/matlab/characters-and-strings.html\"\u003eString array\u003c/a\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data.\u003c/p\u003e\u003cp\u003eThe \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003ePart 1\u003c/a\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted \u003cb\u003e{''}\u003c/b\u003e (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted \u003cb\u003e\u0026lt; missing \u0026gt;\u003c/b\u003e.\u003c/p\u003e\u003cp\u003eRefer to the R2016b documentation for more information on the \u003ca href = \"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\"\u003emissing values for different data types\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003eInput:\r\n\u0026gt;\u0026gt; x = {'I', '', '', 'MATLAB'}\r\nx =\r\n  1×4 cell array\r\n    'I'    ''    ''    'MATLAB'\r\n\u003c/pre\u003e\u003cpre class=\"language-matlab\"\u003eOutput:\r\n\u0026gt;\u0026gt; y = string('I'); y(4) = 'MATLAB'\r\ny = \r\n  1×4 string array\r\n    \"I\"    \u0026lt;missing\u0026gt;    \u0026lt;missing\u0026gt;    \"MATLAB\"\r\n\u003c/pre\u003e\u003cp\u003eRelated Problems in this series:\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values\"\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/a\u003e\u003c/li\u003e\u003c/ul\u003e","function_template":"function y = cell2str(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = {'I','love','MATLAB'};\r\ny_correct = string({'I','love','MATLAB'});\r\nassert(isequal(cell2str(x),y_correct))\r\n\r\n%%\r\nx = {'I', '', '', 'MATLAB'};\r\ny_correct = string('I'); y_correct(4) = 'MATLAB';\r\nassert(isequaln(cell2str(x),y_correct))\r\n\r\n%%\r\nx = {'I',   '',      'MATLAB'\r\n     '',    'love',  'MATLAB'\r\n     'I',   'love',  ''      };\r\ny_correct = [string('I'),  string(NaN),     string('MATLAB')\r\n             string(NaN),  string('love'),  string('MATLAB')\r\n             string('I'),  string('love'),  string(NaN)     ];\r\nassert(isequaln(cell2str(x),y_correct))\r\n","published":true,"deleted":false,"likes_count":5,"comments_count":2,"created_by":12569,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":123,"test_suite_updated_at":"2016-11-23T06:30:05.000Z","rescore_all_solutions":false,"group_id":16,"created_at":"2016-11-21T04:09:03.000Z","updated_at":"2026-03-10T20:06:28.000Z","published_at":"2016-11-22T21:16:06.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/characters-and-strings.html\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003ePart 1\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e{''}\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e\u0026lt; missing \u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRefer to the R2016b documentation for more information on the\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\\\"\u003e\u003cw:r\u003e\u003cw:t\u003emissing values for different data types\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eExample:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[Input:\\n\u003e\u003e x = {'I', '', '', 'MATLAB'}\\nx =\\n  1×4 cell array\\n    'I'    ''    ''    'MATLAB'\\n\\nOutput:\\n\u003e\u003e y = string('I'); y(4) = 'MATLAB'\\ny = \\n  1×4 string array\\n    \\\"I\\\"    \u003cmissing\u003e    \u003cmissing\u003e    \\\"MATLAB\\\"]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRelated Problems in this series:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"problem_search":{"errors":[],"problems":[{"id":43673,"title":"String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array","description":"\u003chttp://www.mathworks.com/help/matlab/characters-and-strings.html String array\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\r\n\r\nThe \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values  Part 2\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted *\u003c missing \u003e*, need to be converted to the missing values for cell arrays, denoted *{''}* (i.e., cell of empty character). \r\n\r\nRefer to the R2016b documentation for more information on the \u003chttp://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing missing values for different data types\u003e.\r\n \r\nExample: \r\n\r\n  Input:\r\n  \u003e\u003e x = string({'I','love'}); x(4) = 'MATLAB'\r\n  x = \r\n    1×4 string array\r\n      \"I\"    \"love\"    \u003cmissing\u003e    \"MATLAB\"\r\n  \r\n  Output:\r\n  \u003e\u003e y = {'I', 'love', '', 'MATLAB'}\r\n  y =\r\n    1×3 cell array\r\n      'I'    'love'    ''    'MATLAB'\r\n\r\nRelated Problems in this series:\r\n\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values   String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values   String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values   String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003e\r\n* String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array","description_html":"\u003cp\u003e\u003ca href = \"http://www.mathworks.com/help/matlab/characters-and-strings.html\"\u003eString array\u003c/a\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\u003c/p\u003e\u003cp\u003eThe \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003ePart 2\u003c/a\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted \u003cb\u003e\u0026lt; missing \u0026gt;\u003c/b\u003e, need to be converted to the missing values for cell arrays, denoted \u003cb\u003e{''}\u003c/b\u003e (i.e., cell of empty character).\u003c/p\u003e\u003cp\u003eRefer to the R2016b documentation for more information on the \u003ca href = \"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\"\u003emissing values for different data types\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003eInput:\r\n\u0026gt;\u0026gt; x = string({'I','love'}); x(4) = 'MATLAB'\r\nx = \r\n  1×4 string array\r\n    \"I\"    \"love\"    \u0026lt;missing\u0026gt;    \"MATLAB\"\r\n\u003c/pre\u003e\u003cpre class=\"language-matlab\"\u003eOutput:\r\n\u0026gt;\u0026gt; y = {'I', 'love', '', 'MATLAB'}\r\ny =\r\n  1×3 cell array\r\n    'I'    'love'    ''    'MATLAB'\r\n\u003c/pre\u003e\u003cp\u003eRelated Problems in this series:\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values\"\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/a\u003e\u003c/li\u003e\u003cli\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/li\u003e\u003c/ul\u003e","function_template":"function y = str2cell(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = string({'I','love','MATLAB'});\r\ny_correct = {'I','love','MATLAB'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = string({'I','love'}); x(5) = 'MATLAB';\r\ny_correct = {'I','love','','','MATLAB'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = string([1 NaN 2]);\r\ny_correct = {'1','','2'};\r\nassert(isequal(str2cell(x),y_correct))\r\n\r\n%%\r\nx = strings(3);\r\nx(1) = 'first'; \r\nx(end) = 'last';\r\ny_correct = {'first',  '',     ''\r\n             '',       '',     ''\r\n             '',       '',     'last'};\r\nassert(isequal(str2cell(x),y_correct))","published":true,"deleted":false,"likes_count":2,"comments_count":0,"created_by":12569,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":119,"test_suite_updated_at":"2016-11-23T06:24:32.000Z","rescore_all_solutions":false,"group_id":16,"created_at":"2016-11-21T03:52:19.000Z","updated_at":"2026-03-10T20:16:49.000Z","published_at":"2016-11-22T21:16:18.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/characters-and-strings.html\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a string array of text data. Your job is to convert the string array to a cell array of character vectors, which stores the same pieces of text data.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003ePart 2\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e assuming no missing values in the input string array is a good starting point. In this problem, the missing values for string arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e\u0026lt; missing \u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e, need to be converted to the missing values for cell arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e{''}\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (i.e., cell of empty character).\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRefer to the R2016b documentation for more information on the\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\\\"\u003e\u003cw:r\u003e\u003cw:t\u003emissing values for different data types\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eExample:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[Input:\\n\u003e\u003e x = string({'I','love'}); x(4) = 'MATLAB'\\nx = \\n  1×4 string array\\n    \\\"I\\\"    \\\"love\\\"    \u003cmissing\u003e    \\\"MATLAB\\\"\\n\\nOutput:\\n\u003e\u003e y = {'I', 'love', '', 'MATLAB'}\\ny =\\n  1×3 cell array\\n    'I'    'love'    ''    'MATLAB']]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRelated Problems in this series:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43674-string-array-basics-part-3-convert-cell-array-to-string-array-with-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"},{"id":43674,"title":"String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array","description":"\u003chttp://www.mathworks.com/help/matlab/characters-and-strings.html String array\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data. \r\n\r\nThe \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values Part 1\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted *{''}* (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted *\u003c missing \u003e*. \r\n\r\nRefer to the R2016b documentation for more information on the \u003chttp://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing missing values for different data types\u003e. \r\n \r\n\r\nExample: \r\n\r\n  \r\n\r\n  Input:\r\n  \u003e\u003e x = {'I', '', '', 'MATLAB'}\r\n  x =\r\n    1×4 cell array\r\n      'I'    ''    ''    'MATLAB'\r\n\r\n  Output:\r\n  \u003e\u003e y = string('I'); y(4) = 'MATLAB'\r\n  y = \r\n    1×4 string array\r\n      \"I\"    \u003cmissing\u003e    \u003cmissing\u003e    \"MATLAB\"\r\n\r\nRelated Problems in this series:\r\n\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values   String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003e \r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values   String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003e \r\n* String Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\r\n* \u003chttp://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values   String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003e\r\n","description_html":"\u003cp\u003e\u003ca href = \"http://www.mathworks.com/help/matlab/characters-and-strings.html\"\u003eString array\u003c/a\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data.\u003c/p\u003e\u003cp\u003eThe \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003ePart 1\u003c/a\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted \u003cb\u003e{''}\u003c/b\u003e (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted \u003cb\u003e\u0026lt; missing \u0026gt;\u003c/b\u003e.\u003c/p\u003e\u003cp\u003eRefer to the R2016b documentation for more information on the \u003ca href = \"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\"\u003emissing values for different data types\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003eInput:\r\n\u0026gt;\u0026gt; x = {'I', '', '', 'MATLAB'}\r\nx =\r\n  1×4 cell array\r\n    'I'    ''    ''    'MATLAB'\r\n\u003c/pre\u003e\u003cpre class=\"language-matlab\"\u003eOutput:\r\n\u0026gt;\u0026gt; y = string('I'); y(4) = 'MATLAB'\r\ny = \r\n  1×4 string array\r\n    \"I\"    \u0026lt;missing\u0026gt;    \u0026lt;missing\u0026gt;    \"MATLAB\"\r\n\u003c/pre\u003e\u003cp\u003eRelated Problems in this series:\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\"\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\"\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/a\u003e\u003c/li\u003e\u003cli\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/li\u003e\u003cli\u003e\u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values\"\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/a\u003e\u003c/li\u003e\u003c/ul\u003e","function_template":"function y = cell2str(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = {'I','love','MATLAB'};\r\ny_correct = string({'I','love','MATLAB'});\r\nassert(isequal(cell2str(x),y_correct))\r\n\r\n%%\r\nx = {'I', '', '', 'MATLAB'};\r\ny_correct = string('I'); y_correct(4) = 'MATLAB';\r\nassert(isequaln(cell2str(x),y_correct))\r\n\r\n%%\r\nx = {'I',   '',      'MATLAB'\r\n     '',    'love',  'MATLAB'\r\n     'I',   'love',  ''      };\r\ny_correct = [string('I'),  string(NaN),     string('MATLAB')\r\n             string(NaN),  string('love'),  string('MATLAB')\r\n             string('I'),  string('love'),  string(NaN)     ];\r\nassert(isequaln(cell2str(x),y_correct))\r\n","published":true,"deleted":false,"likes_count":5,"comments_count":2,"created_by":12569,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":123,"test_suite_updated_at":"2016-11-23T06:30:05.000Z","rescore_all_solutions":false,"group_id":16,"created_at":"2016-11-21T04:09:03.000Z","updated_at":"2026-03-10T20:06:28.000Z","published_at":"2016-11-22T21:16:06.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/characters-and-strings.html\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e and cell array are two types of containers for storing pieces of data. In this problem, you will be given a cell array of character vectors. Your job is to convert the cell array to a string array, which stores the same pieces of text data.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003ePart 1\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e assuming no missing values in the input cell array is a good starting point. In this problem, the missing values for cell array of character vectors, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e{''}\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (i.e., cell of empty character), need to be converted to the missing values for string arrays, denoted\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e\u0026lt; missing \u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRefer to the R2016b documentation for more information on the\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/help/matlab/ref/ismissing.html?=ismissing\\\"\u003e\u003cw:r\u003e\u003cw:t\u003emissing values for different data types\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eExample:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[Input:\\n\u003e\u003e x = {'I', '', '', 'MATLAB'}\\nx =\\n  1×4 cell array\\n    'I'    ''    ''    'MATLAB'\\n\\nOutput:\\n\u003e\u003e y = string('I'); y(4) = 'MATLAB'\\ny = \\n  1×4 string array\\n    \\\"I\\\"    \u003cmissing\u003e    \u003cmissing\u003e    \\\"MATLAB\\\"]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eRelated Problems in this series:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43677-string-array-basics-part-1-convert-cell-array-to-string-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43672-string-array-basics-part-2-convert-string-array-to-cell-array-no-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 3: Convert Cell Array with Missing Values to String Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/43673-string-array-basics-part-4-convert-string-array-to-cell-array-with-missing-values\\\"\u003e\u003cw:r\u003e\u003cw:t\u003eString Array Basics, Part 4: Convert String Array with Missing Values to Cell Array\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"term":"tag:\"missing value\"","current_player_id":null,"fields":[{"name":"page","type":"integer","callback":null,"default":1,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"per_page","type":"integer","callback":null,"default":50,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"sort","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"body","type":"text","callback":null,"default":"*:*","directive":null,"facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":false},{"name":"group","type":"string","callback":null,"default":null,"directive":"group","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"difficulty_rating_bin","type":"string","callback":null,"default":null,"directive":"difficulty_rating_bin","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"id","type":"integer","callback":null,"default":null,"directive":"id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"tag","type":"string","callback":null,"default":null,"directive":"tag","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"product","type":"string","callback":null,"default":null,"directive":"product","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_at","type":"timeframe","callback":{},"default":null,"directive":"created_at","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"profile_id","type":"integer","callback":null,"default":null,"directive":"author_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_by","type":"string","callback":null,"default":null,"directive":"author","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player_id","type":"integer","callback":null,"default":null,"directive":"solver_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player","type":"string","callback":null,"default":null,"directive":"solver","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"solvers_count","type":"integer","callback":null,"default":null,"directive":"solvers_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"comments_count","type":"integer","callback":null,"default":null,"directive":"comments_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"likes_count","type":"integer","callback":null,"default":null,"directive":"likes_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leader_id","type":"integer","callback":null,"default":null,"directive":"leader_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leading_solution","type":"integer","callback":null,"default":null,"directive":"leading_solution","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true}],"filters":[{"name":"asset_type","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":"\"cody:problem\"","prepend":true},{"name":"profile_id","type":"integer","callback":{},"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":"author_id","static":null,"prepend":true}],"query":{"params":{"per_page":50,"term":"tag:\"missing value\"","current_player":null,"sort":"map(difficulty_value,0,0,999) asc"},"parser":"MathWorks::Search::Solr::QueryParser","directives":{"term":{"directives":{"tag":[["tag:\"missing value\"","","\"","missing value","\""]]}}},"facets":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df1e0\u003e":null,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df140\u003e":null},"filters":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0de6a0\u003e":"\"cody:problem\""},"fields":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df460\u003e":1,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df3c0\u003e":50,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df320\u003e":"map(difficulty_value,0,0,999) asc","#\u003cMathWorks::Search::Field:0x00007ff7fd0df280\u003e":"tag:\"missing value\""},"user_query":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df280\u003e":"tag:\"missing value\""},"queried_facets":{}},"query_backend":{"connection":{"configuration":{"index_url":"http://index-op-v2/solr/","query_url":"http://search-op-v2/solr/","direct_access_index_urls":["http://index-op-v2/solr/"],"direct_access_query_urls":["http://search-op-v2/solr/"],"timeout":10,"vhost":"search","exchange":"search.topic","heartbeat":30,"pre_index_mode":false,"host":"rabbitmq-eks","port":5672,"username":"cody-search","password":"78X075ddcV44","virtual_host":"search","indexer":"amqp","http_logging":"true","core":"cody"},"query_connection":{"uri":"http://search-op-v2/solr/cody/","proxy":null,"connection":{"parallel_manager":null,"headers":{"User-Agent":"Faraday v1.0.1"},"params":{},"options":{"params_encoder":"Faraday::FlatParamsEncoder","proxy":null,"bind":null,"timeout":null,"open_timeout":null,"read_timeout":null,"write_timeout":null,"boundary":null,"oauth":null,"context":null,"on_data":null},"ssl":{"verify":true,"ca_file":null,"ca_path":null,"verify_mode":null,"cert_store":null,"client_cert":null,"client_key":null,"certificate":null,"private_key":null,"verify_depth":null,"version":null,"min_version":null,"max_version":null},"default_parallel_manager":null,"builder":{"adapter":{"name":"Faraday::Adapter::NetHttp","args":[],"block":null},"handlers":[{"name":"Faraday::Response::RaiseError","args":[],"block":null}],"app":{"app":{"ssl_cert_store":{"verify_callback":null,"error":null,"error_string":null,"chain":null,"time":null},"app":{},"connection_options":{},"config_block":null}}},"url_prefix":"http://search-op-v2/solr/cody/","manual_proxy":false,"proxy":null},"update_format":"RSolr::JSON::Generator","update_path":"update","options":{"url":"http://search-op-v2/solr/cody"}}},"query":{"params":{"per_page":50,"term":"tag:\"missing value\"","current_player":null,"sort":"map(difficulty_value,0,0,999) asc"},"parser":"MathWorks::Search::Solr::QueryParser","directives":{"term":{"directives":{"tag":[["tag:\"missing value\"","","\"","missing value","\""]]}}},"facets":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df1e0\u003e":null,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df140\u003e":null},"filters":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0de6a0\u003e":"\"cody:problem\""},"fields":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df460\u003e":1,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df3c0\u003e":50,"#\u003cMathWorks::Search::Field:0x00007ff7fd0df320\u003e":"map(difficulty_value,0,0,999) asc","#\u003cMathWorks::Search::Field:0x00007ff7fd0df280\u003e":"tag:\"missing value\""},"user_query":{"#\u003cMathWorks::Search::Field:0x00007ff7fd0df280\u003e":"tag:\"missing value\""},"queried_facets":{}},"options":{"fields":["id","difficulty_rating"]},"join":" "},"results":[{"id":43673,"difficulty_rating":"easy-medium"},{"id":43674,"difficulty_rating":"easy-medium"}]}}