psych (version 1.0-25)

ICLUST.sort: sort items by absolute size of cluster loadins

Description

Given a cluster analysis or factor analysis loadings matrix, sort the items by the (absolute) size of each column of loadings. Used as part of ICLUST and SAPA analyses.

Usage

ICLUST.sort(ic.load, cut = 0, labels = NULL,loading=TRUE)

Arguments

ic.load

A loading matrix from a factor or principal components analysis, or from ICLUST.

cut

Do not include items in clusters with absolute loadings less than cut

labels

labels for each item.

loading

if coming from a factor analysis or ICLUST output, use loading=TRUE, but, if just sorting a matrix use loading=FALSE

Value

• cluster
  A matrix of -1, 0, 1s defining each item by the factor/cluster with the row wise largest absolute loading.
• load
  A data.frame of item numbers, item contents, and item x factor loadings.
• ...

Details

When interpreting cluster or factor analysis outputs, is is useful to group the items in terms of which items have their biggest loading on each factor/cluster and then to sort the items by size of the absolute factor loading.

A stable cluster solution will be one in which the output of these cluster definitions does not vary when clusters are formed from the clusters so defined.

References

http://personality-project.org/r/r.ICLUST.html

See Also

ICLUST.graph,ICLUST.cluster, cluster.fit, VSS, factor2cluster