[SciPy-user] Correlation

[PGM]

Folks,
I'd need to compute the cross-correlation of two series. 
For the 1D case, I use numpy.correlate and select the last half of the result 
to get what I want.
I need to work with 2Darrays, either by row, or by colum, or on the flattened 
array. I'm a bit at loss about what commands to use:
scipy.signal.signaltools does not allow to work per axis.
Any comments will be welcome
Thanks in advance
P.