Digital Filter Bode diagram by M-file

How to get the bode diagram of digital filter like a FIR LPF designed by Fdatool. That is written in M-file. X axis unit is Hz, not rad/s. Please show me its M file.

Answer 1

[Star Strider]

Use the fvtool (link) function, or the freqz (link) function. .

[Isao Okada]

How to get Num, den from .slx model. Some parameters can be changed, user can better ansewer by running the batch M-files.

[Star Strider]

I do not have sufficient experience with Simulink to solve that problem.