compLoad {multiUS}

Compare factor loadings

Description

The function compares two sets of factor loadings by considering different possible orders of factors and different possible signs of factor loadings.

Usage

compLoad(L1, L2)

Arguments

L1

First set of factor loadings in a matrix form (variables are organized in rows and factors are organized in columns).

L2

Second set of factor loadings in a matrix form (variables are organized in rows and factors are organized in columns).

Value

A list with the following elements:

• err - Sum of squared differences between the values of L1 and L2 (for the corresponding permuation and signs).

• perm - Permutation of columns of L1 that results in the lowest err value.

• sign - Signs of factor loadings of L1. The first value corresponds to the first column of L1 and the second value corresponds to the second column of L1.

Author(s)

Aleš Žiberna and Friedrich Leisch (permutations)

Examples

L1 <- cbind(c(0.72, 0.81, 0.92, 0.31, 0.22, 0.15), c(0.11, 0.09, 0.17, 0.77, 0.66, 0.89))
L2 <- cbind(c(-0.13, -0.08, -0.20, -0.78, -0.69, -0.88), c(0.72, 0.82, 0.90, 0.29, 0.20, 0.17))
compLoad(L1, L2)