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kelly
2008 Nov 14
1
ellipse in pairs plot
...dimensional data frame for which i want to have a pairs() plot, with ellipse added in each lower.panel.
I want the ellipse's parameter (mu, sigma) to be extracted from the appropriate entries in a pre-computed matrix ("dab" in the code below).
Can it be done ?
Thanks in advance,
melly<-function (x, y, col = par("col"), bg = NA, pch = par("pch"),cex = 1){
points(x, y, pch = pch, col = col, bg = bg, cex = cex)
ok <- is.finite(x) & is.finite(y)
if (any(ok))
ellipse(mu=dab$center[?],sigma=dab$cov[?,?])
}
pairs(wf[,1:5],diag.panel=b...