[SciPy-user] SystemError in optimize.bisplrep
Martin Lüthi
answer at tnoo.net
Sat Jan 22 19:37:06 EST 2005
Hi
There is a consistent SystemError when I try to use optimize.bisplrep on a
certain data set.
=================
Python 2.4 (#1, Nov 30 2004, 09:18:19)
[GCC 3.3.3] on linux2
help(scipy) gives VERSION 0.3.2_302.4546 (CVS version from about January 20)
help(Numeric) gives VERSION 23.1
=================
numerix Numeric 23.1
iopt,kx,ky,m= 0 3 3 16
nxest,nyest,nmax= 9 9 9
lwrk1,lwrk2,kwrk= 1298 571 20
xb,xe,yb,ye= 1711.91585 1102.19325 -2237.94674 -1573.73858
eps,s 1.E-16 10.3431458
Traceback (most recent call last):
File "fehler.py", line 21, in ?
xvelospl = scipy.interpolate.bisplrep(vc[:,0], vc[:,1], vc[:,2])
File "/usr/local/lib/python2.4/site-packages/scipy/interpolate/fitpack.py", line 611, in bisplrep
tx,ty,nxest,nyest,wrk,lwrk1,lwrk2)
SystemError: error return without exception set
==================
This code produces the error
==================
import scipy
vc = scipy.array([[ 1.71191585e+03, -2.23794674e+03, 4.75308808e+00],
[ 2.12372140e+03, -1.93888718e+03, 5.81923099e+00],
[ 3.35389426e+03, -1.04998143e+03, 1.62242033e+00],
[ 2.94453166e+03, -1.34979104e+03, 4.88224816e+00],
[ 2.53225224e+03, -1.64269489e+03, 8.05746675e+00],
[ 2.23717430e+03, -1.22890371e+03, 4.83692941e+00],
[ 1.35903071e+03, -1.88168793e-02, 1.74331390e+00],
[ 1.65124228e+03, -4.07642789e+02, 1.90797462e+00],
[ 1.89958300e+03, -5.17000000e+02, 2.26234838e+00],
[ 1.40869886e+03, -9.83926136e+02, 3.04278075e+00],
[ 1.69451200e+03, -1.28935600e+03, 4.54354841e+00],
[ 1.73692665e+03, -9.59722949e+02, 3.16536871e+00],
[ 2.49206700e+03, -7.63554000e+02, 2.68046469e+00],
[ 2.14106300e+03, -1.31310900e+03, 5.31786607e+00],
[ 7.18383558e+02, -1.74427543e+03, 2.47771836e+00],
[ 1.10219325e+03, -1.57373858e+03, 2.79857398e+00]])
spl = scipy.interpolate.bisplrep(vc[:,0], vc[:,1], vc[:,2])
==================
The error does not occur with different data.
Thanks for any help!
Martin
--
Martin Lüthi answer at tnoo.net
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