I need to analyse questionnaire survey data with mixed data types (nominal, ordinal, continuous). I want to cluster the variables. So far I only have dead ends.
- I know I can use daisy in the cluster package to cluster the cases, but I want to cluster the variables.
- lots of cluster procedures like ICLUST can cluster variables but they don't allow nominal data types.
The only thing I can think of is to split up the categorial variables into binary dummy variables, standardise everything, and then apply ICLUST.