Re: [python-control-discuss] Kalman or LQG

[Rene v. P. <ren...@gm...>]

A while ago I found this link:

https://github.com/alchemyst/Skogestad-Python/

This contains a bunch of control calculations in Python, apparently aimed
at solving the control problems in a book. Possibly some of the solutions
can be used in python-control. I already got inspiration for the margin
command from there (but in the end changed implementation to a purely
analytic one for transfer functions).

@Carl, apparently behind the Skogestad-Python page, python-control is a
control library for Python, based on sourceforge.

On 12 June 2013 21:29, Ryan Krauss <rk...@si...> wrote:

> So, this seems to call my reading comprehension skills into question.....
>
> What is and is not implemented seems clear if you read the entire webpage,
> which I obviously did not.....
>
>
> On Wednesday, June 12, 2013, Richard Murray wrote:
>
>> Neither lag() or kalman() are currently implemented.  In the link you
>> sent, these are *not* marked with a star (=> not implemented).  The legend
>> for entries (at the top of the page) is:
>>
>> * : The feature is currently implemented.
>> - : The feature is not planned for implementation.
>> s : A similar feature from an other library (Scipy) is imported into the
>> module, until the feature is implemented here.
>>
>> We should perhaps add to to this:
>>
>>   : The feature is not yet implemented
>> ~ : A prototype of the function is available, but with limited
>> functionality
>>
>> For lqg() and kalman, the status is ' ' (empty) => nobody has yet
>> implemented this.
>>
>> Since all that is required to implement these functions is (roughly)
>> solving some Riccati equations and do some system manipulations (all of
>> which are already in the current release), it shouldn't be
>>
>> -richard
>>
>> On 12 Jun 2013, at 9:51 , Ryan Krauss <rk...@si...> wrote:
>>
>> > I am trying to use the python-control module for a state-space design
>> problem for the first time.  The documentation makes it sound like LQG and
>> Kalman functions should be available, at least through the Matlab
>> compatibility module:
>> > http://python-control.sourceforge.net/manual/matlab_strings.html
>> >
>> > But I am not seeing these functions in ipython.  Am I missing something
>> or are the functions located somewhere else or called something else?
>> >
>> > Thanks,
>> >
>> > Ryan
>> >
>> > --
>> > Ryan Krauss, Ph.D.
>> > Associate Professor
>> > Mechanical Engineering
>> > Southern Illinois University Edwardsville
>> >
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René van Paassen        | ______o____/_|     Ren...@gm...
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