How to convert a numeric array to a table.I want the first row of data of the array to be J and the second row of data to be K in a table T[J K];

>> A=imread('C:\Users\ADMIN\Desktop\canada.bmp');
>> level=graythresh(A);
>> B=im2bw(A);
>> O=imcontour(B);

I'm building this code and the last command returns an array wich has two rows of data!These data are the points of contoured image invariants.I want to create a table which will take the first row of data as J and the second row as K in a new table T[J K];Don't mind if it's double or unit8 or something else.Please help!!

Answer 1

[Guillaume]

array2table(O.', 'VariableNames', {'J', 'K'});

Single letter variable names / column names are not good practice. Use variable names that have meaning.

[Thanos Lampridis]

Thanks a lot!So the first row goes to J with a long variable name and secong row goes to K with also long name?

[Thanos Lampridis]

And how can i reffer to the fist row?For example J1 or J2 or K1 or K2 e.t.c??

[Guillaume]

Please, see the help on working with tables

mytable = array2table(O.', 'VariableNames', {'J', 'K'});
mytable(1, :)  %return 1st row of mytable as a table
mytable.J(1)   %return 1st element of column J

[Thanos Lampridis]

Thank's a lot again!!

Answer 2

[Azzi Abdelmalek]

A=randi(10,2,5)
names={'J','K'}
cell2table(num2cell(A'),'VariableNames',names)

[Thanos Lampridis]

Thank you!!!Please note me the importance of randi in this case!

[Guillaume]

There's no need to go through a cell array. array2table will directly convert all columns of a matrix into table columns.