Hi,
When I have more variables than units, e.g. a 10x20 data frame with 20
variables. princomp can't do pca on variables. prcomp from mva package can
do th etrick but gave 10 principal components. Should we expect 20 for this
case?
Thanks in advance,
Weidong
Hi All,
I have some questions on using library rpart. Given my data below, the
plotcp gives me increasing 'xerrors' across different cp's with huge xstd
(plot attached). What causes the problem or it's not a problem at all? I am
thinking 'xerror's should be decreasing when 'cp' gets smaller.
Hi All,
I am trying to cluster a one-dimensional data (see the file attached) using
Mclust() but got an error message like:
Mclust(x)
Error in rep(1, n) : Object n not found
When I do a simulation sometimes it works sometimes doesn't.
Mclust(c(rnorm(50),rnorm(56,-0.5)))
Error in rep(1, n) :
