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why does matlab tell me that the "chop" command doesn't exist?

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why does matlab tell me that the chop command doesn't exist?

Accepted Answer

per isakson
per isakson on 28 Mar 2020
Edited: per isakson on 28 Mar 2020
Make sure that you have the Control System Toolbox. chop() is a function in that toolbox.
>> product_info = ver('control')
product_info =
struct with fields:
Name: 'Control System Toolbox'
Version: '10.5'
Release: '(R2018b)'
Date: '24-May-2018'
Maybe chop() is removed. It was obsolete in R2018b.
>> which chop -all
C:\Program Files\MATLAB\R2018b\toolbox\control\ctrlobsolete\chop.m
Bodo Christian
Bodo Christian on 29 Mar 2020
thanks I managed to install the Tool. I have an academic license because I am studying at the Politecnico of Turin. The command was for use in an exercise. I'm at the first approach with matlab thanks to everyone for the answers.

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More Answers (2)

Walter Roberson
Walter Roberson on 28 Mar 2020
MATLAB does not contain any chop() function, unless it is a method for some object that I cannot think of at the moment.

Steven Lord
Steven Lord on 28 Mar 2020
Cleve's original version of MATLAB had a chop command as you can see from the user's guide, but I'm not sure there is such a command in any MathWorks product right now. Did you perhaps want to use Professor Nick Higham's File Exchange submission? If so you'll need to install that add-on -- the easiest way to do that is to use Add-On Explorer.





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