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Mate
1

Problem accessing MATLAB functions

Asked by Mate
on 16 Mar 2012
Latest activity Answered by Kirankumar on 4 Jul 2014
Hi!
I'm currently doing a project in transfer function estimation with MATLAB's PEM and TFEST functions. However, TFEST as well as other system identification functions like IDTF seems to be missing, despite I'm running 2011a. (The reason I want to use TFEST is because I want to specify the number of poles/zeros in my PEM estimation.)
Thank you

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2 Answers

Answer by Jacob Halbrooks on 16 Mar 2012
 Accepted Answer

Do you have System Identification Toolbox installed? You can see a list of installed toolboxes by executing:
ver
In addition, it appears that TFEST is a new function added in R2012a (see the R2012a Release Notes). If using a prior release, try upgrading.

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Mate
on 16 Mar 2012
Yes, I have MATLAB 2011a with
System Identification Toolbox Version 7.4.2
That explains it. TFEST was added in R2012a. I've updated my original solution to be mroe complete.

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Answer by Kirankumar on 4 Jul 2014

Is there any equivalent method in Matlab 2011a to perform system identification for continuous model with 2 zeros and 2 poles. PEM can at maximum estimate for 1 zero and N poles. I cannot migrate to MATLAB 2012a for the moment.
Regards, kirankumar.

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