[R] a question on lda{MASS}
Weiwei Shi
helprhelp at gmail.com
Fri Aug 10 00:33:14 CEST 2007
hi,
assume
val is the test data while m is lda model value by using CV=F
x = predict(m, val)
val2 = val[, 1:(ncol(val)-1)] # the last column is class label
# col is sample, row is variable
then I am wondering if
x$x == (apply(val2*m$scaling), 2, sum)
i.e., the scaling (is it coeff vector?) times val data and sum is the
discrimant result $x?
Thanks.
--
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
"Did you always know?"
"No, I did not. But I believed..."
---Matrix III
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