use string as a cell array.

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.

Answer 1

[Anthony]

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

[jose bernardo]

Thank you Anthony, It works perfectly.

Saludos!

[Jan]

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

Answer 2

[Azzi Abdelmalek]

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?

[Azzi Abdelmalek]

read this

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

[jose bernardo]

Thank you Azzi.

The variables with the sufix 'ns' were all in the workspace, and I needed to do a loop with them, but not all, only the variables that appeared in the array (imported from excel).

But with the command "eval" do all ok.

Un saludo.

[Jan]

+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]

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)