Using different functions in a loop

Dear all,

I need to generate different indicators based on the same data but from a set of functions in a loop. Is there a way to specify different functions in a for loop?

Thanks.

Joe

[Peng Zhou]

I seem to find a clumsy way myself involving eval:

for ii = 1:length(function_cell{ii})
    hhh = eval(['@', function_cell{ii}]);  % define a function handle for the ii-th function
    zzz = hhh(inputs);
end

If there is any better approach, please let me know. Thanks.

Answer 1

[Stephen23]

Convert strings-of-function-names to function handles (which they should be anyway):

C = {'sin','sqrt','abs'};
C = cellfun(@str2func,C,'uni',0); % convert
for k = 1:numel(C)
    C{k}(-1) % call
end

ans = -0.8415

ans = 0.0000 + 1.0000i

ans = 1

[Peng Zhou]

Thank you!

Answer 2

[Jan]

for ii = 1:length(function_cell)
    zzz = feval(function_cell{ii}, inputs);
end

[Peng Zhou]

Thank you! I should have known feval.