[Scipy-tickets] [SciPy] #783: bisplrep segfault with kx=3, ky=3, s=0
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scipy-tickets@scipy....
Sun Nov 9 17:49:04 CST 2008
#783: bisplrep segfault with kx=3, ky=3, s=0
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Reporter: mauger | Owner: somebody
Type: defect | Status: new
Priority: normal | Milestone: 0.7.0
Component: scipy.interpolate | Version:
Severity: normal | Resolution:
Keywords: |
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Changes (by pv):
* milestone: => 0.7.0
Comment:
I get this instead:
{{{
scipy version: 0.7.0.dev5031
numpy version: 1.3.0.dev5991
Test 1 - smoothing spline
/home/pauli/koodi/proj/scipy/scipy.git/dist/linux/lib/python2.5/site-
packages/scipy/interpolate/fitpack.py:760: DeprecationWarning: integer
argument expected, got float
tx,ty,nxest,nyest,wrk,lwrk1,lwrk2)
Test 2 - kx=3, ky=1 interpolating spline
Test 3 - kx=3, ky=3 interpolating spline
Warning: No more knots can be added because the number of B-spline
coefficients
already exceeds the number of data points m. Probably causes: either
s or m too small. (fp>s)
kx,ky=3,3 nx,ny=19,20 m=231 fp=0.000000 s=0.000000
}}}
But no crash (tested on a 32-bit and a 64-bit system).
On the other hand, I don't think there are any substantial changes in the
code since 0.6.0 that would affect this. I know that there are other
crasher bugs in fitpack related to too many points that don't appear on
all machines -- eg. #776 might be related.
It might be useful to check if this is still present with the development
version of Scipy.
--
Ticket URL: <http://scipy.org/scipy/scipy/ticket/783#comment:1>
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