use string as a cell array.

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jose bernardo 2013-10-18

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评论： Anthony 2013-10-19

Hi:

I have various variables in the workspace: january_ns=1, february_ns=2, march_ns=3,.... Also I have an array like this: month={january february march }

I would like to show the content of the variable january_ns for example but using the array to show it.

To write month{1}_ns instead january_ns to show the value 1, for example.

I was trying with the next line, but it didnt work.

([month{1},'_ns',''])

Any idea to do that? Thanks.

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Answer 1

Anthony 2013-10-18

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https://ww2.mathworks.cn/matlabcentral/answers/90581-use-string-as-a-cell-array#answer_100043

在 MATLAB Online 中打开

january_ns=1, february_ns=2, march_ns=3
month={'january' 'february' 'march' };
eval([month{1},'_ns'])

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jose bernardo 2013-10-18

Thank you Anthony, It works perfectly.

Saludos!

Jan 2013-10-18

@jose: It might work now, but Azzi's suggestion shows a much better strategy.

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Answer 2

Azzi Abdelmalek 2013-10-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/90581-use-string-as-a-cell-array#answer_100042

编辑：Azzi Abdelmalek 2013-10-18

在 MATLAB Online 中打开

month={'january' 'february' 'march' }
month{1}
month{2}

% You don't need to create a variable january_ns. Can you explain why you want to create these variables?

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Jan 2013-10-18

+1: This solution is much better than the eval approach. It is a bad programming practice to store important information in the name of variables, because carrying values is a job for the contents of a variable, not for the name!

Anthony 2013-10-19

编辑：Anthony 2013-10-19

no doubt that it is not advisable to use 'eval' , well, in most cases. (just give what is closest to the code you describe without knowing what/why you want to do. not intend to teach any coding habit :P)

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