Re: [python-control-developers] python-control issues #27

[Richard M. <mu...@cd...>]

Thanks!

-richard

> On 19 Jun 16, at 04:19, Kangwon Wayne Lee <ka...@gm...> wrote:
> 
> Dear Prof. Murray,
> 
> Thanks for your interest.
> 
> To be more accurate, for the direct function calls, I let a script count the number of "from slycot import" lines.
> 
> Following is my result so far: (function names, number of imports)
>  1: sb02md was imported 3 times
>  2: sb02mt was imported 3 times
>  3: sb03md was imported 3 times
>  4: tb04ad was imported 3 times
>  5: td04ad was imported 3 times
>  6: sg02ad was imported 2 times
>  7: sg03ad was imported 2 times
>  8: ab09ad was imported 1 times
>  9: sb01bd was imported 1 times
> 10: sb02od was imported 1 times
> 11: sb04md was imported 1 times
> 12: sb04qd was imported 1 times
> 13: sb10ad was imported 1 times
> 14: sb10hd was imported 1 times
> 15: tb01pd was imported 1 times
> 
> IMHO, for the slycot-free version of the python-control, rigorous testing would be desirable.
> 
> Hope this helps,
> 
> KW
> 
> On Sun, Jun 19, 2016 at 2:46 AM, Richard Murray <mu...@cd...> wrote:
> Thanks for this information, Wayne.
> 
> Out of curiosity, since you probably have it handy, can you send a list of the direct calls to slycot from python-control?  I’d be curious to know how many functions we call in total, since if we create a version of python-control that does not require slycot, we’ll have to find replacements for all of those functions.
> 
> -richard
> 
> > On 18 Jun 16, at 00:12, Kangwon Wayne Lee <ka...@gm...> wrote:
> >
> > Dear Prof. Murray,
> >
> > I am writing to share one survey on https://github.com/python-control/python-control/issues/27
> >
> > I tried to count the number of slycot functions called directly or indirectly by python-control on the 2016 May 31 version of python-control and 2016 March 11 version o fhttps://github.com/jgoppert/Slycot.
> >
> > I could count 80 functions called.  "dcopy" is the most frequently called : 22 times but in slycot functions only.  sb02md, sb02mt, sb03md are the most frequently called slycot functions in python-control: all three times each.
> >
> > One thing to note : function calls are disjoint : no function is called both by python-control and in the slycot functions.
> >
> > Hope this helps,
> >
> > KW
> >
> > --
> > Kangwon "Wayne" Lee
> > +82 10 7750 5778
> 
> 
> 
> 
> -- 
> Kangwon "Wayne" Lee
> +82 10 7750 5778