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Title: Update evalfr() to be consistent with MATLAB usage by murrayrm · Pull Request #179 · python-control/python-control · GitHub

Open Graph Title: Update evalfr() to be consistent with MATLAB usage by murrayrm · Pull Request #179 · python-control/python-control

X Title: Update evalfr() to be consistent with MATLAB usage by murrayrm · Pull Request #179 · python-control/python-control

Description: This PR addresses issue #22, in which it was pointed out that the evalfr() method in the TransferFunction and StateSpace objects takes different arguments than the evalfr() function. Specifically, the evalfr method takes a real argument (the frequency at which you want to evaluate the frequency response) and the evalfr function takes a complex argument (consistent with MATLAB usage). This PR makes the following changes to the code base: Renamed evalfr() in the FRD, StateSpace and TransferFunction classes to _evalfr() and put a deprecation warning for use of the evalfr() method. Changed calls to evalfr() in frdata.py and margins.py to use _evalfr() Added unit tests for the the new methods + warnings These changes eliminate the inconsistency in the argument form between the (MATLAB compatible) evalfr() function and the evalfr() methods for LTI objects. The _evalfr() method retains the original functionality, since it is used for computing stability margins and for converting objects to FRD form.

Open Graph Description: This PR addresses issue #22, in which it was pointed out that the evalfr() method in the TransferFunction and StateSpace objects takes different arguments than the evalfr() function. Specifically,...

X Description: This PR addresses issue #22, in which it was pointed out that the evalfr() method in the TransferFunction and StateSpace objects takes different arguments than the evalfr() function. Specifically,...

Opengraph URL: https://github.com/python-control/python-control/pull/179

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