Compute "variance" of the matrices using Frobenius norm. Variance is by default computed with respect to the mean of the matrices.

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Description

Compute "variance" of the matrices using Frobenius norm. Variance is by default computed with respect to the mean of the matrices.

Usage

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matrix_variability(mat_lst, mean_mat = apply(abind::abind(mat_lst, along = 3),
  c(1, 2), mean))

Arguments

mat_lst

A [1,M] list of [I,J] matrices from which variability should be computed

mean_mat

A [I,J] matrix describing the mean observation for mat_lst.

Value

A list with elements

fbnorm

Frobenius norm values for each of the matrices

diff

[I,J,M] matrix of differences mat_lst-mean_mat

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