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# How can i convert this string into an input for a function?

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Robu Robert on 24 Apr 2021
Commented: Stephen Cobeldick on 25 Apr 2021
Hello, everyone! I have this program:
ch=['MRWI'
'IDMZ'
'CGBI'
'JKNO']
v=[];
[x,y]=size(ch)
for i=1:x
v=[v, 'ch(',num2str(i),',:),']
end
where v will be equal to the string: ''ch(1,:),ch(2,:),ch(3,:),ch(4,:),'. My question is how can i use v as an input for a function? for exemple, to display the values of v as 'MRWI,IDMZ,CGBI,JKNO'
##### 3 CommentsShowHide 2 older comments
Stephen Cobeldick on 25 Apr 2021
As David Hill wrote, you should avoid converting data to character representations of the same data.
As Rik wrote, the correct approach is to use a comma-separated list:
Bruno Luong showed you exactly how here:

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### Answers (1)

Rik on 24 Apr 2021
ch=['MRWI'
'IDMZ'
'CGBI'
'JKNO'];
v=ch.';v=v(:).';
disp(v)
##### 2 CommentsShowHide 1 older comment
Rik on 25 Apr 2021
Then you need cell2mat, after which you can use {:} to create a comma separated list.

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