[SciPy-User] Reality check

David Goldsmith d.l.goldsmith@gmail....
Sat Jul 10 22:37:10 CDT 2010


The default for the axis argument of fftpack.rfft is -1; I couldn't find the
source for what this function ultimately calls, but the fact that it
preserves the shape of its input (determined empirically) suggests that it
means transform over the last axis (as opposed to transform flattened
input).  Two questions:

a) Is this correct?

b) I forget: this means that it is transforming "across" columns, i.e., each
row represents a separate data set, correct?

DG
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