Package pyvision :: Package ml :: Module lda

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Module lda

Created on Jan 27, 2011

Author: bolme

Functions

(np.array,np.array,dict,dict)

lda(data, labels, reg=0.0)
Compute the lda basis vectors.

source code

Variables

__package__ = 'pyvision.ml'

Function Details

lda(data, labels, reg=0.0)

Compute the lda basis vectors. Based on Wikipedia and verified against R

Parameters:

data (np.array) - the data matrix with features in rows.
labels (np.array (int or str)) - a corresponding 1D array of labels, one label per row in data

Returns: (np.array,np.array,dict,dict)

(lda_values,lda_basis,means,priors)