cluster2keys {psych} | R Documentation |
The output of the kmeans clustering function produces a vector of cluster membership. The score.items
and cluster.cor
functions require a matrix of keys. cluster2keys does this.
May also be used to take the output of an ICLUST
analysis and find a keys matrix. (By doing a call to the factor2cluster
function.
cluster2keys(c)
c |
A vector of cluster assignments or an object of class “kmeans" that contains a vector of clusters. |
Note that because kmeans will not reverse score items, the clusters defined by kmeans will not necessarily match those of ICLUST with the same number of clusters extracted.
keys |
A matrix of keys suitable for score.items or cluster.cor |
William Revelle
cluster.cor
,score.items
, factor2cluster
, make.keys
test.data <- Harman74.cor$cov
kc <- kmeans(test.data,4)
keys <- cluster2keys(kc)
keys #these match those found by ICLUST
cluster.cor(keys,test.data)