freqz Function not working properly in 2010 version

Hi.

I am getting an error while using freqz in 2010 Matlab version.

Answer 1

[Star Strider]

Thank you for telling us.

If you want help on the problem, copy and paste the relevant portions of your code, including your filter design, sampling frequency, passband and stopband frequencies, and tell us what the error is. Copy the entire red text from your Command Window and paste it to your Question. Use the ‘Edit’ button to add it to your original Question.

Answer 2

[Steven Lord]

FREQZ is part of Signal Processing Toolbox. If the error message you receive indicates that FREQZ is an undefined function or variable, check the output of VER to determine if you have this toolbox installed.