open large csv file
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i have a csv file with 93 coloums and 150000 rows
number of coloums may change to 90 in some tests and all entries are text / string
i need a single code to calculate the no of rows and couloums dynamically by reading the csv file and then get the 93/90 variable data in seprate variables
i have been using uiimport in my GUI but when i compiled the code into an application (.exe) using matlab application compiler uiimport function gives following error
"Error using uiimport>showLargeFileWindow (line 1126)
Java exception occurred:
java.lang.NullPointerException
at com.mathworks.mlwidgets.importtool.TextImportClient.showWaitProgressWindow(TextImportClient.java:253)"
Now i am using
fid=fopen('1.csv');
>> data = textscan(fid,'%s','HeaderLines',0,'Delimiter',',','CollectOutput',1);
now i am getting all the data in i single variable data ![Untitled.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/236033/Untitled.jpeg)
![Untitled.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/236033/Untitled.jpeg)
can any body help me for opening this csv file in standalone application with each variable having its values stored
First row are the variable names
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Answers (1)
Nicolas B.
on 29 Aug 2019
2 Comments
Nicolas B.
on 29 Aug 2019
I would say that you have 1 header missing. Try to open your csv-file in libreoffice or excel and check whether there are headers to each column. If you cannot correct that, read the file without headers.
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