[SciPy-user] Calculating a lot of (squared) Mahalanobis distances
Fri Nov 7 03:36:22 CST 2008
On 6-Nov-08, at 10:44 PM, Robert Kern wrote:
>> Does anyone have any other tricks up their sleeve?
> (xmmu * np.dot(sigmainv, xmmu)).sum(axis=0)
As usual, Robert to the rescue. Thanks!
I'm thinking of modifying scipy.cluster.distance.mahalanobis to
incorporate this behaviour. Does anyone know why they seem to assume
row-vectors (the right hand one is transposed rather than the left)?
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