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

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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