Invalid numpy.trace docstring (Trac #532)

[numpy-gitbot]

Original ticket http://projects.scipy.org/numpy/ticket/532 on 2007-06-01 by @pv, assigned to unknown.

The numpy.trace docstring is invalid, trace actually sums over the diagonal in the first two axes by default:

import numpy as N
print N.__version__
N.info(N.trace)
x = N.zeros((4,4,5,6))
print N.trace(x).shape
x = N.zeros((5,6,4,4))
print N.trace(x).shape

outputs

1.0.3
 trace(a, offset=0, axis1=0, axis2=1, dtype=None, out=None)

trace(a,offset=0, axis1=0, axis2=1) returns the sum along diagonals
(defined by the last two dimenions) of the array.
(5, 6)
(4, 4)

[numpy-gitbot]

Attachment added by @pv on 2007-06-01: 0001-Fix-trace-docstring.patch

[numpy-gitbot]

Milestone changed to 1.0.4 Release by @alberts on 2007-07-10

[numpy-gitbot]

@stefanv wrote on 2007-09-30

Fixed by charris.