functions not supported by simulink coder

I have a function block in simulink and want to use the function "normcdf", but the simulink coder does not support this function. how can i overcome this issue ? thanks alot

Answer 1

[Kaustubha Govind]

Unfortunately, this function is not in the list of MATLAB functions supported for code generation. You might need to implement a C-equivalent yourself (or try to find an equivalent third-part library function), and integrate it into a custom Simulink block.

[pemfir]

But this is not straight forward, i have heard that there is a command something like "external command" that can help with this issue, but i am not sure how.

[Kaustubha Govind]

pemfir: Do you mean using coder.extrinsic? That only works if your block is executing within the MATLAB environment, it does not generate standalone code which is what Simulink Coder does.

[pemfir]

how do i go about doing the C-equivalent, can you help me get started ?

[Kaustubha Govind]

pemfir: Sorry, I have no experience in this area. You might want to get help from Statistics experts/forums.

[pemfir]

Thank you, what i mean, is that a simple example of such implementation, it does not have to be normcdf, any function would be good, so i can get started.