Displaying 2 results from an estimated 2 matches for "bestr".
Did you mean:
best
2007 Jun 14
2
Difference between prcomp and cmdscale
I'm looking for someone to explain the difference between these
procedures. The function prcomp() does principal components anaylsis,
and the function cmdscale() does classical multi-dimensional scaling
(also called principal coordinates analysis).
My confusion stems from the fact that they give very similar results:
my.d <- matrix(rnorm(50), ncol=5)
rownames(my.d) <-
2007 Jul 02
2
Question about PCA with prcomp
Hello All,
The basic premise of what I want to do is the following:
I have 20 "entities" for which I have ~500 measurements each. So, I
have a matrix of 20 rows by ~500 columns.
The 20 entities fall into two classes: "good" and "bad."
I eventually would like to derive a model that would then be able to
classify new entities as being in "good