CODEWITHSUNDEEP
matlab
user1876942
user1876942

Reputation: 1501

Dynamic switch in Matlab MAT file

I have a Matlab mat file, which has the following variables:

variable0
variable1
variable2
variable3

Is it possible to dynamically index them and modify, something like this:

function setVariable(obj, variableNum, data)
    obj.matFile.(variable0+variableNum) = data;

end

So, if someone passes 0 variable 0 is modified and if someone passes 3 then variable three. I know this code doesn't work, this is just some example of what I tried. My current solution is to use a switch statement. This is not so good as in the C++ code, I am using indexing like above. I would like the C++ and Matlab to be as close as possible.

ANSWER

I did it this way and it is working:

eval(sprintf('obj.matfile_variable%d = data;', variableNum));

Upvotes: 0

Views: 94

Answers (2)

Cesare
Cesare

Reputation: 75

What about using

obj.matFile(variableNum).data = data;

Upvotes: 0

Romano
Romano

Reputation: 13

function setVariable(obj, variableNum, data)
    % check if variableNum is numeric
    if isnumeric(variableNum)
        variableNum = num2str(variableNum);
        varName = strcat('variable',variableNum); 
    else
        varName = strcat('variable',variableNum);
    end

    obj.matFile.(varName) = data;


end

This should do the trick.

Upvotes: 0

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