Re: [R] panel ordering in nlme and augPred plots

From: Nathaniel Derby <nbderby_at_gmail.com>
Date: Mon 03 Jul 2006 - 14:10:53 EST


Hi,

I'm new at this, I'm very confused, and I think I'm missing something important here. In our pet example we have this:

> fm <- lme(Orthodont)
> plot(Orthodont)
> plot(augPred(fm, level = 0:1))

which gives us a trellis plot with the females above the males, starting with "F03", "F04", "F11", "F06", etc. I thought the point of this was to create an ordering where the females are ordered ("F01", "F02", "F03", etc -- followed by the males being ordered). However, the solution given ...

> fm <- lme(Orthodont)
> plot(Orthodont)
> plot(augPred(fm1, level = 0:1), skip = rep(c(F,T), c(16, 2)))

... doesn't solve it -- although it does do all the females before starting on the males. That is, it starts with "F02", "F08", "F03", ... which isn't in order either.

Running Petr's code also gave output which wasn't ordered by the subjects.

Could someone please explain to me how to order the panels of the trellis plot by the subjects?

thanks,

Nandor



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