MATLAB: Problem accessing MATLAB functions

estimationtfesttransfer function

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

Best 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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