Description Usage Arguments Value Author(s) References Examples
This step reduces the data space to the affine subspace spanned by the
n
observations.
1 | FHCSkernelEVD(x,best=NULL,q=NULL)
|
x |
A data matrix. |
best |
An optional subset of |
q |
Desired rank of the SVD decomposition. Optional. |
A reduced data set with full rank.
Small modification of the code from the classPC
from rrcov
.
Wu, W., Massart, D. L., and de Jong, S. (1997), 'The Kernel PCA Algorithms for Wide Data. Part I: Theory and Algorithms,' Chemometrics and Intelligent Laboratory Systems,36,165–172
1 2 3 4 | n<-50
p<-200
x<-matrix(rnorm(n*p),nc=p)
W<-FHCSkernelEVD(x)
|
Loading required package: matrixStats
Loading required package: robustbase
Attaching package: 'robustbase'
The following objects are masked from 'package:matrixStats':
colMedians, rowMedians
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