R: GPA Rotation for Factor Analysis

GPArotation-package {GPArotation} | R Documentation

## GPA Rotation for Factor Analysis

### Description

GPArotation implements Gradient Projection Algorithms and several rotation objective functions for factor analysis.

### Details

Package: | GPArotation
Depends: | R (>= 2.0.0)
License: | GPL Version 2.
URL: | http://www.stat.ucla.edu/research or
| http://www.stat.ucla.edu/research/gpa

The main optimization functions are `GPForth` and `GPFoblq`. Rotation objectives include `oblimin` and many others.

### Author(s)

Coen A. Bernaards and Robert I. Jennrich with some R modifications by Paul Gilbert.

Code is modified from original source ‘splusfunctions.net’ available at http://www.stat.ucla.edu/research/gpa.

### References

The software reference is

Bernaards, C.A. and Jennrich, R.I. (2005) Gradient Projection Algorithms and Software for Arbitrary Rotation Criteria in Factor Analysis. Educational and Psychological Measurement, 65, 676–696.

Theory of gradient projection algorithms may be found in:

Jennrich, R.I. (2001). A simple general procedure for orthogonal rotation. Psychometrika, 66, 289–306.

Jennrich, R.I. (2002). A simple general method for oblique rotation. Psychometrika, 67, 7–19.

### See Also

`rotations`, `GPForth`, `GPFoblq`, `factanal`

[Package GPArotation version 2014.11-1 Index]