MATLAB: Can i add heaviside step function in Matlab runtime library

librarymatlab runtime

I'm having issue with heaviside step function with Matlab runtime.

I have main.m which includes heaviside step function inside it. No problem with Matlab itself.

My workflow is : Compiling main.m to executable file and submit it to computational node on Centos.

To do this, i installed Matlab Runtime. However, it shows error message that it can't find the heaviside function.

So, i want to add heaviside function to Runtime library if i could.

Is it possible?

If is not possible, is it the only to install Matlab itself on computational nods?

Thank you.

Best Answer

Are you trying to call the heaviside function in Symbolic Math Toolbox? Nothing in Symbolic Math Toolbox is supported for use with MATLAB Compiler.

Are you trying to call the heaviside function in Simulink Test? That too is not supported for use with MATLAB Compiler.

Related Solutions

MATLAB: What is the problem with the heaviside function

Your function works for me. Do you have the Symbolic Math Toolbox?

If you don’t substitute a call to this one for the heaviside call:

hvsd = @(x) [0.5*(x == 0) + (x > 0)];

I tested both, they give equivalent results.

MATLAB: Do I receive Undefined function errors for HEAVISIDE function when I try to compile it in a FIT object in MATLAB 7.8 (R2009a)

The HEAVISIDE function is a function present in the Symbolic Math Toolbox. The Symbolic Math Toolbox functions cannot be compiled using the MATLAB Compiler.

http://www.mathworks.com/products/ineligible_programs/

To workaround this issue, you can write your own heaviside function as shown below:

function Y = heaviside1(X)
%HEAVISIDE    Step function.
Y = zeros(size(X));
Y(X > 0) = 1;
Y(X == 0) = .5;
end

Now, you can use the above custom heaviside function in your MATLAB code as follows:

function my_fit
% Create a fit
x = [1:10]';
y = x*0.25;
z = [-0.5:0.1:0.5];
% Create a FIT
cfit = fit(x,y,'a.*heaviside1(b-x).*(b-x)'); % using custom heaviside1
cfit
d = cfit(z);
plot(x,y,'*k',z,d,'.');

You can then compile this code into a standalone executable using the following command:

mcc -m my_fit.m -a heaviside1.m

Best Answer

Related Solutions

MATLAB: What is the problem with the heaviside function

MATLAB: Do I receive Undefined function errors for HEAVISIDE function when I try to compile it in a FIT object in MATLAB 7.8 (R2009a)

Related Question