computePartial4Groups function

Computes group alphas and group factor scores for $K$ groups of observations in distatis.

computePartial4Groups: Computes group alphas and group factor scores for $K$ groups of observations used to compute the compromise (i.e., matrix S) in a distatis analysis.

computePartial4Groups(resDistatis, DESIGN)

Arguments

• resDistatis: The results of a Distatis analysis (as performed by the DistatisR::distatis) function.
• DESIGN: A Design vector describing the groups of observations

Returns

A list with

• "GroupFS: "The $K$ weighted mean coordinates
• "groupAlpha: "The $K$ alpha weights

Details

In DISTATIS, the compromise is computed as a weighted (with the alpha-coefficients) sum of the $K$ pseudo-covariance matrices Sk, computePartial4Groups

sums all the alpha coefficients of a group to compute each group partial factor scores.

See Also

distatis

Author(s)

Hervé Abdi