[SciPy-Dev] Doc error in scipy.optimize.fmin and missing info in ref guide
Ralf Gommers
ralf.gommers@googlemail....
Mon Mar 15 19:13:30 CDT 2010
On Tue, Mar 16, 2010 at 7:50 AM, David Goldsmith <d.l.goldsmith@gmail.com>wrote:
> This is *very* bizarre: in View mode, Other parameters is displayed before
> Returns, but in the edit frame in Edit mode, Returns is displayed above
> Other parameters, but then if I preview, the preview displays it
> incorrectly, even though in the edit frame, it's still correct!!! Can
> someone verify this on another platform/in another browser, please? (Mine:
> Windows Vista, Firefox 3.6). Thanks!
>
> Not that bizarre. The rendered version simply always looks the same, and
assumes that Other Params belongs before instead of after Returns. The doc
standard simply disagrees with pydocweb here. I don't have a strong opinion
on which one is preferable, but it should be fixed.
Cheers,
Ralf
>> On Mon, Mar 15, 2010 at 4:13 PM, <josef.pktd@gmail.com> wrote:
>>
>>> On Mon, Mar 15, 2010 at 7:05 PM, Rob Clewley <rob.clewley@gmail.com>
>>> wrote:
>>> > Hi,
>>> >
>>> > In both my old version and the one in the svn trunk there is an
>>> > inconsistency in the docstring of scipy.optimize.fmin.
>>> >
>>> > Other Parameters
>>> > ----------------
>>> > xtol : float
>>> > Relative error in xopt acceptable for convergence.
>>> > ftol : number
>>> > Relative error in func(xopt) acceptable for convergence.
>>> >
>>> > As you see from the following code snippet from the body of the
>>> > function, the convergence test is in terms of absolute error for both
>>> > x and f, as the sim array contains x values and fsim the function
>>> > values.
>>> >
>>> > if (max(numpy.ravel(abs(sim[1:]-sim[0]))) <= xtol \
>>> > and max(abs(fsim[0]-fsim[1:])) <= ftol):
>>> > break
>>> >
>>> > Also, optional parameters for any optimize functions are not described
>>> > in the draft of the Scipy reference manual I came across while
>>> > googling this issue. For instance, at
>>> >
>>> >
>>> http://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.fmin.html#scipy.optimize.fmin
>>> >
>>> > fmin does not have the optional arguments detailed. If this is
>>> > automatically generated is there a reason why the optional parameters
>>> > aren't being shown in this document? I think they should be, IMO.
>>>
>>> just a guess:
>>>
>>> http://docs.scipy.org/scipy/docs/scipy.optimize.optimize.fmin/
>>>
>>> shows that Other Parameters is in the wrong order. It could be that
>>> the section is ignored for rendering the html for this reason
>>>
>>> Josef
>>>
>>>
>>> >
>>> > -Rob
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>>
>>
>
>
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