MATLAB: How to make a function handle of another function handle

absolute valuefunction handleintegration

As input for my function file I have a function handle, for example y = @(x)x.^3. In this function file this function is evaluated, however I also want to integrate the absolute value of this function. The MATLAB command integral requires a function handle: integral(@(x)y,LB,UB). How do I take the absolute value of this function handle? I tried: @(x)abs(y), but this didn't work. Also some other things I tried didn't work, except filling in @(x)abs(x.^3), but this is not what I want, because the function handle should remain an input for the function file.

Best Answer

@(x) abs(y(x)) Because yo need variable x to be part of the expression of your new anonymous function. Taking y(x) then take the absolute value of that.

Related Solutions

MATLAB: How to plot a function, typed in a textfield (GUI), as a function handle

I am not sure if anonymous function can be defined that way. Try this:

str='x.^2';
f=inline(str);
x=0:0.1:4;
plot(x,f(x))

MATLAB: Problem in using function handle

npc is a fixed input to that function handle, it will be set at the time the function handle is created as a constant. If you want it to be one of your input variables you need:

fun = @(xT,yT,xt,yt,npc) ((yt-(([1 xt])*PLSR_A(xT,yT,npc)))^2);

Best Answer

Related Solutions

MATLAB: How to plot a function, typed in a textfield (GUI), as a function handle

MATLAB: Problem in using function handle

Related Question