[SciPy-User] Disable singular matrix warning

Carlos Baptista carlossbaptista@gmail....
Sun Aug 12 21:06:13 CDT 2012


I had not tried it before. But I did it just now and it did not work
unfortunately.

On 12 August 2012 23:47, Paweł Kwaśniewski <pawel.kw@gmail.com> wrote:

> Hi,
>
> Have you tried the simplest example from
> http://docs.python.org/library/warnings.html
>
> import warnings
>
>
> with warnings.catch_warnings():
>     warnings.simplefilter("ignore")
>
> And then your function call?
>
> Cheers,
>
> Paweł
>
>
> 2012/8/12 Carlos Baptista <carlossbaptista@gmail.com>
>
>> Hello there,
>>
>> I am fairly new to Python. As a self-test I re-programmed an old MATLAB
>> assignment in Python using NumPy, SciPy and Matplotlib. At a certain point
>> I am getting the following warning:
>>
>> warning: (almost) singular matrix! (estimated cond. number: 1.87e+14)
>>
>> This result is however expected and therefore I would like to disable
>> this warning. I am getting this warning from:
>>
>> scipy.sparse.linalg.spsolve(A,b)
>>
>> where A has a large condition number.
>>
>> I have already tried the following to no avail:
>>
>> ========================
>>
>> import warnings
>>
>>
>> with warnings.catch_warnings():
>>
>>     warnings.filterwarnings("ignore",category=Warning)
>>
>>     from poisson import solvePoisson
>>
>>
>> ========================
>>
>>
>> where solvePoisson is the function (located in poisson.py) in which the
>> above solve statement is executed.
>>
>>
>> How can I disable this singular matrix warning?
>>
>>
>>
>> With kind regards,
>>
>> Carlos
>>
>> _______________________________________________
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>> SciPy-User@scipy.org
>> http://mail.scipy.org/mailman/listinfo/scipy-user
>>
>>
>
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>


-- 
met de vriendelijke groeten van / with kind regards,

Carlos Fernando Baptista
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