CODEWITHSUNDEEP
stringmatlabfunctionevalsequence
Saj_Eda
Saj_Eda

Reputation: 203

How to use function by having its name as a string

Suppose you want to use a sequence of functions defined in MATLAB, and you just have the name of those functions as string variables. Let say you have already created fun1, fun2, ...,funN, and you also have a vector of strings as ['fun1','fun2',...,'funN']. How to call each function automatically without being forced to write name of each function one by one?

Upvotes: 1

Views: 285

Answers (1)

Jonas
Jonas

Reputation: 74940

Use str2func. Of course, if the functions have been defined as function handles (e.g. fun1 = @(x)x+x.^2+sqrt(x))), you can skip the str2func step below.

strList= {'sum','mean','max','min'};
funList = cellfun(@str2func,strList,'uniformOutput',false);

nFunctions = length(funList);
data = rand(10,1);
results = zeros(nFunctions,1)

for iFunction = 1:nFunctions
    results(iFunction) = fulList{iFunction}(data);
end

Upvotes: 6

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