Model Tables | Factor Analysis | Vantage Analytics Library - Model Tables - Vantage Analytics Library

Vantage Analytics Library User Guide

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
Lake
VMware
Product
Vantage Analytics Library
Release Number
2.2.0
Published
March 2023
Language
English (United States)
Last Update
2024-01-02
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Product Category
Teradata Vantage

Principal Component Analysis Report

Option Description
Number of Variables Number of variables to be factored, taken from the matrix that is input to the algorithm. Note that there are no dependent or independent variables in a factor analysis model.
Minimum Eigenvalue Minimum value of a factor’s associated eigenvalue, determining whether or not to include the factor in the final model. This field is not displayed if the Number of Factors option is used to determine the number of factors retained.
Number of Factors Number of factors retained in the final factor analysis model. If the Number of Factors option is explicitly set by the user to determine the number of factors, then this reported value reflects the value set by the user. Otherwise, it reflects the number of factors resulting from applying the Minimum Eigenvalue option.
Matrix Type (cor/cov) Type of input matrix requested by the user: correlation (cor) or covariance (cov).
Rotation (none/orthogonal/oblique) Type of rotation, if any, requested by the user: none, orthogonal, or oblique.
Gamma Coefficient in the rotation equation that reflects the type of rotation requested, if any, and in some cases is explicitly set by the user. Gamma is determined by the specified Orthogonal rotations and Oblique rotations values.
Orthogonal rotations
  • Varimax—(gamma in rotation equation fixed at 1.0)
  • Quartimax—(gamma in rotation equation fixed at 0.0)
  • Equamax—(gamma in rotation equation fixed at f / 2)*
  • Parsimax—(gamma in rotation equation fixed at v(f-1) / (v+f+2))*
  • Orthomax—(gamma in rotation equation set by user)

    * where v is the number of variables and f is the number of factors

Oblique rotations
  • Quartimin—(gamma in rotation equation fixed at 0.0)
  • Biquartimin—(gamma in rotation equation fixed at 0.5)
  • Covarimin—(gamma in rotation equation fixed at 1.0)
  • Orthomin—(gamma in rotation equation set by user)