how to create a matrix named after a string and be able to use it afterwards

Question

PA00 2011-6-19

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/9812-how-to-create-a-matrix-named-after-a-string-and-be-able-to-use-it-afterwards

Hello, first thanks to any help you can give me.

I would like to build a m*n matrix of zeros with its var named by a string and be able to call it after to populate the zeros with numbers.

I have managed to do it using eval, like in this example:

>> eval(['my_var_name' '=zeros(4,4)'])

my_var_name =

   0     0     0
   0     0     0
   0     0     0
   0     0     0

>> eval(['my_var_name(2,:)' '=[1,2,3,4]'])

my_var_name =

   0     0     0
   2     3     4
   0     0     0
   0     0     0

but is there a better or simpler way to do it? I will have to do this several times in a loop to a certain number of matrices that i will name by strings, the calculations i have to do in order to populated these matrices are computational expensive will eval function make any significant overburden?

thanks for any suggestions.