1 | ddplot(x)
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x |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (x)
{
p <- dim(x)[2]
center <- apply(x, 2, mean)
cov <- var(x)
md2 <- mahalanobis(x, center, cov)
out <- cov.mcd(x)
center <- out$center
cov <- out$cov
rd2 <- mahalanobis(x, center, cov)
MD <- sqrt(md2)
rd <- sqrt(rd2)
const <- sqrt(qchisq(0.5, p))/median(rd)
RD <- const * rd
plot(MD, RD)
abline(0, 1)
identify(MD, RD)
}
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