[SciPy-dev] ticket 464

dmitrey openopt@ukr....
Thu Jul 26 09:54:18 CDT 2007


also, I think rank is better to be replaced by x.ndim
Am I right?
Regards, D.


dmitrey wrote:
> hi all,
> Nils proposed me to fix the ticket 464
> http://projects.scipy.org/scipy/scipy/ticket/464
>
> I found the problem is here:
>
>     rank = len(x0.shape)# So matrix(0.3) yields shape (1,1) here => rank = 2
>     if not -1 < rank < 2:
>         raise ValueError, "Initial guess must be a scalar or rank-1 
> sequence."
>
> I propose to fix it in the way:
>
>     rank = len(x.shape)
>     if not -1 < rank < 2:
>         if x.shape == (1,1): x = x.flatten()#matrix(0.3) for example
>         else: raise ValueError, "Initial guess must be a scalar or 
> rank-1 sequence."
>
> If you don't mind (no other opinions during several hours) I will commit 
> the change to svn.
> I found the same change should be done for optimize.fmin
> Regards, D.
>
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