[Numpy-discussion] code using Numeric and LinearAlgebra
Mon Mar 31 21:51:42 CDT 2008
On Mon, Mar 31, 2008 at 6:06 PM, gordon <firstname.lastname@example.org> wrote:
> i came across some code that uses calls like
> LinearAlgebra.eigenvectors(L) and Numeric.matrixmultiply(v, x) which
> gives compilation errors on my new numpy installation.Is it possible
> to get such code compiled while using new version of numpy?
> when evalues, evectors = LinearAlgebra.eigenvectors(L) is computed for
> a symmetric covariance matrix L ,how are eigenvectors arranged in
> evectors? are they in columns?can i simply replace the above call by
Columns, yes, and yes.
> Similarly can i just replace Numeric.matrixmultiply(v, x) with
> numpy.dot() ,
Yes. matrixmultiply() was a deprecated alias even in Numeric.
> or is there something i must watch for in the above two cases?
Not particularly, no.
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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