skbio.stats.composition.
closure
(mat)[source]¶State: Experimental as of 0.4.0. Performs closure to ensure that all elements add up to 1.
Parameters: | mat (array_like) – a matrix of proportions where rows = compositions columns = components |
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Returns: | A matrix of proportions where all of the values are nonzero and each composition (row) adds up to 1 |
Return type: | array_like, np.float64 |
Raises: |
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Examples
>>> import numpy as np
>>> from skbio.stats.composition import closure
>>> X = np.array([[2, 2, 6], [4, 4, 2]])
>>> closure(X)
array([[ 0.2, 0.2, 0.6],
[ 0.4, 0.4, 0.2]])