[Numpy-discussion] Min Error
David Reed
david.reed.c at gmail.com
Sun Sep 22 10:45:50 EDT 2013
Thanks Sebastian, but still have same error. Also doesn't explain why it
works when I run the same code at the debug prompt. Scratching my head on
this one.
Dave
On Sun, Sep 22, 2013 at 10:42 AM, Sebastian Berg <sebastian at sipsolutions.net
> wrote:
> On Sun, 2013-09-22 at 10:21 -0400, David Reed wrote:
> > Hi,
> >
> >
> > I am getting a strange error when finding the minimum of a matrix.
> > The weird thing is I get this while running within iPython shell, and
> > if I do %debug and go to the line where this fails and run the command
> > `a = np.min(D, axis=0)`, I get no error.
> >
> >
> > Here is the trace:
> >
> >
> > draw_lines/main.pyc in haus_distance(A, B)
> > 28 D = D.reshape((len(A), None))
> > 29
> > ---> 30 a = np.min(D, axis=0)
> > 31
> > 32 # vp = np.max(np.min(D, axis=0))
> >
>
> There is an error in the reshape code. The real error is the None in
> your reshape right above, it should be -1.
> This is not surfaced correctly due to a bug in Reshape, but instead gets
> surfaced (somewhat randomly) lateron.
>
> - Sebastian
>
> >
> > anaconda/lib/python2.7/site-packages/numpy/core/fromnumeric.pyc in
> > amin(a, axis, out, keepdims)
> > 1985 else:
> > 1986 return _methods._amin(a, axis=axis,
> > -> 1987 out=out, keepdims=keepdims)
> > 1988
> > 1989 def alen(a):
> >
> >
> > anaconda/lib/python2.7/site-packages/numpy/core/_methods.pyc in
> > _amin(a, axis, out, keepdims)
> > 12 def _amin(a, axis=None, out=None, keepdims=False):
> > 13 return um.minimum.reduce(a, axis=axis,
> > ---> 14 out=out, keepdims=keepdims)
> > 15
> > 16 def _sum(a, axis=None, dtype=None, out=None, keepdims=False):
> >
> >
> > TypeError: an integer is required
> >
> >
> >
> >
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>
>
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