Outputting to string

Question

Sam Falzone 2011-1-27

2
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/515-outputting-to-string

I want to do this, essentially:

for i = 1:3
  ['variable_' int2str(i)] = function(i);
end

How do I tell MATLAB to create a series of variables as outputs? It isn't good enough to output to variable(i) as the output is a series of matrices and vectors, not a single value.

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Answer 1

Kenneth Eaton 2011-1-27

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/515-outputting-to-string#answer_759

在 MATLAB Online 中打开

You can do this using the function EVAL:

for i = 1:3
  eval(['var_' int2str(i) ' = fcn(i);']);
end

But in general an easier approach is to store your outputs in a cell array instead of a bunch of variables:

outputArray = cell(1,3);
for i = 1:3
  outputArray{i} = fcn(i);
end

This makes it much easier to access the data later since you can just index into the cell array to get its contents, whereas for the first approach you would likely have to reconstruct a variable name and use EVAL again later to access the data stored in a particular variable.