Thurstone: Thurstone Box Data

In GPArotation: Gradient Projection Factor Rotation

Thurstone Box Data

Description

Factor loading matrices derived from Thurstone's box data.

Usage

  data(Thurstone)

Format

Two numeric matrices:

• box26: 26 x 3 matrix of unrotated factor loadings.

• box20: 20 x 3 matrix of unrotated factor loadings.

Details

Loading the data makes the following objects available:

box26 is a 26 \times 3 unrotated factor loading matrix for 26 variables measured on a set of boxes. It appears frequently in the rotation literature as a dataset for comparing rotation criteria, particularly for assessing local minima.

box20 is a 20 \times 3 unrotated factor loading matrix for a subset of 20 variables from the same box data. It is used in Jennrich (2002) to illustrate rotation criteria and local minima behavior.

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.

Source

Thurstone, L.L. (1947). Multiple Factor Analysis. University of Chicago Press.

References

Jennrich, R.I. (2002). A simple general method for oblique rotation. Psychometrika, 67(1), 7–19. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1007/BF02294706")}

See Also

GPForth, rotations, Harman, CCAI, WansbeekMeijer, GriffithMulaik

GPArotation documentation built on July 28, 2026, 9:08 a.m.