MATLAB: How to take a function to handle as input

function handle input

Hi;

i have a code which evaluates a function "f". but i want to take this "f" as input.

it is like;

f=@ input('please enter the predefined function name')

but this is not valid. is any way to do this ? thanks.

Best Answer

Use str2func function

str=input('your function','s')
f=str2func(str)

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MATLAB: Function handle as function input

Inside such a wrapper, I highly doubt that. But in principle it should be possible to do what you want. I haven't tested this code, but I think this should work. (After a peek at the doc for int, I suspect this would error, but the principle should hold, after all, f is just a variable, even if it is a weird variable because it is an anonymous function)

function scalar=fct(f)
temp=@(x) f(x).*x.^2;
scalar=int(temp);
end

MATLAB: How to get someone to input a function in a GUI and then work with that function

Use str2func to take their string and turn it into an anonymous function.

doc str2func

Best Answer

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MATLAB: Function handle as function input

MATLAB: How to get someone to input a function in a GUI and then work with that function

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