GNU R analysis and solutions to the Cattell Scree test


This GNU R package provides parallel analysis and non graphical solutions to the Cattell Scree Test.

Indices, heuristics and strategies to help determine the number of factors/components to retain:
  1. Acceleration factor (af with or without Parallel Analysis);
  2. Optimal Coordinates (noc with or without Parallel Analysis);
  3. Parallel analysis (components, factors and bootstrap);
  4. lambda > mean(lambda) (Kaiser, CFA and related);
  5. Cattell-Nelson-Gorsuch (CNG);
  6. Zoski and Jurs multiple regression (b, t and p);
  7. Zoski and Jurs standard error of the regression coeffcient (sescree);
  8. Nelson R2;
  9. Bartlett khi-2;
 10. Anderson khi-2;
 11. Lawley khi-2 and
 12. Bentler-Yuan khi-2.

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