skbio.stats.composition.centralize¶
- skbio.stats.composition.centralize(mat)[source]¶
Center data around its geometric average.
State: Experimental as of 0.4.0.
- Parameters:
mat (array_like, float) – a matrix of proportions where rows = compositions and columns = components
- Returns:
centered composition matrix
- Return type:
numpy.ndarray
Examples
>>> import numpy as np >>> from skbio.stats.composition import centralize >>> X = np.array([[.1,.3,.4, .2],[.2,.2,.2,.4]]) >>> centralize(X) array([[ 0.17445763, 0.30216948, 0.34891526, 0.17445763], [ 0.32495488, 0.18761279, 0.16247744, 0.32495488]])