Thurstone Box Data
Thurstone.RdFactor loading matrices derived from Thurstone's box data, a classic dataset in factor analysis consisting of measurements of physical dimensions of a set of boxes.
Usage
data(Thurstone)Details
Loading the data makes two objects available:
box26 is a \(26 \times 3\) unrotated factor loading
matrix for 26 variables measured on a set of boxes. This is the
recommended matrix for use in examples and benchmarking. It appears
frequently in the rotation literature as a benchmark dataset for
comparing rotation criteria, particularly for assessing local minima.
box20 is a \(20 \times 3\) unrotated factor loading
matrix for 20 variables measured on the same set of boxes.
Deprecated: box20 will be removed in a future version
of GPArotation. Use box26 instead.
Both matrices are suitable as input to GPForth, GPFoblq,
and all rotation wrapper functions in GPArotation. For a richer
collection of factor analysis datasets, see the psych package.
Format
Two numeric matrices:
box26: 26 x 3 matrix of unrotated factor loadings (recommended).box20: 20 x 3 matrix of unrotated factor loadings (deprecated; usebox26instead).