WansbeekMeijer: Netherlands Television Viewership Data

Description

Correlation matrix for Netherlands television viewership, used as an example dataset for factor rotation. From Wansbeek and Meijer (2000), page 171.

Usage

data(WansbeekMeijer)

Arguments

Format

NetherlandsTV is a list with components:

$cov: a $7 \times 7$ numeric correlation matrix
$n.obs: sample size (2154)

Details

NetherlandsTV is a list with components $cov (a $7 \times 7$ correlation matrix for 7 television viewership variables measured in the Netherlands) and $n.obs (sample size, 2154). Use cov2cor(NetherlandsTV\$cov) to obtain the correlation matrix, or pass NetherlandsTV directly to factanal which handles the list structure automatically. It is used throughout the GPArotation documentation and vignettes as an example dataset for oblique rotation with 2 or 3 factors.

Examples

Run this code

  data(WansbeekMeijer, package = "GPArotation")

  # Correlation matrix
  round(cov2cor(NetherlandsTV$cov), 2)

  # factanal picks up n.obs automatically from the list
  factanal(factors = 2, covmat = NetherlandsTV, rotation = "none")

  # Two-step oblique rotation
  fa.unrotated <- factanal(factors = 3, covmat = NetherlandsTV,
                           rotation = "none")
  oblimin(loadings(fa.unrotated), randomStarts = 100)