A list with class 'mvloc' containing the following components:
EigenV
the standardized eigenvalues.
loadings
matrix with the corresponding loadings.
scores
matrix with the principal components.
dname
name of X.
method
Which shape matrix was used for the computation.
n.obs
number of observations used.
p
number of variables.
Arguments
X
a numeric data frame or matrix with p columns.
score
score to be used. Can be either "identity", "sign", "symmsign" or "rank".
estimate
can be "outer" or "inner".
na.action
a function which indicates what should happen when
the data contain 'NA's. Default is to fail.
...
further arguments passed to or from other methods.
Author
Klaus Nordhausen
Details
PCA as descriped in chapter 9 of the MNM book. Note that here ALL scatter matrices used are standardized to have trace(p).
This function differs from most other PCA functions in R in that it does not center the data. The 'mvPCA' class has a print, summary, plot and predict
method.
References
Oja, H. (2010), Multivariate Nonparametric Methods with R, Springer.