GPArotation implements Gradient Projection Algorithms and several rotation objective functions for factor analysis.
Coen A. Bernaards and Robert I. Jennrich with some R modifications by Paul Gilbert.
Code is modified from original source splusfunctions.net available at
https://optimizer.r-forge.r-project.org/GPArotation_www/.
| Package: | GPArotation |
| Depends: | R (>= 2.0.0) |
| License: | GPL Version 2. |
| URL: | https://optimizer.r-forge.r-project.org/GPArotation_www/ |
The main optimization functions are
GPForth and GPFoblq. Rotation objectives include
oblimin and many others.
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.
rotations,
GPForth,
GPFoblq,
factanal