use string as a cell array.

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jose bernardo
jose bernardo 2013-10-18
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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采纳的回答

Anthony
Anthony 2013-10-18
january_ns=1, february_ns=2, march_ns=3
month={'january' 'february' 'march' };
eval([month{1},'_ns'])
  2 个评论
jose bernardo
jose bernardo 2013-10-18
Thank you Anthony, It works perfectly.
Saludos!
Jan
Jan 2013-10-18
@jose: It might work now, but Azzi's suggestion shows a much better strategy.

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更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-10-18
编辑：Azzi Abdelmalek 2013-10-18
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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显示 2更早的评论
Jan
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
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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