This class of objects is returned from
princomp
.
The class
"princomp"
has methods for the following generic functions:
biplot
,
predict
,
print
,
rotate
,
screeplot
,
summary
.
The
"princomp"
object is implemented as a list
with the following components:
"loadings"
giving the loadings.
The first column is the linear combination of columns of
x
defining
the first principal component, etc.
If argument
scores
was numeric, then this contains that number of columns.
covlist
was used.
cor
is
FALSE
.
If
cor
is
TRUE
, then
scales
will be the square roots of the diagonal
of the
cov
component of
covlist
, if present, and otherwise it is the
standard deviations of the input data variables.
princomp
.