Displaying 3 results from an estimated 3 matches for "indomethicin".
2001 Dec 03
0
problems with nmle
Following the Indomethicin example in Pinheiro & Bates, chapter 6,
page 277 etc, coming to the following comand:
fm2Indom.nlme <- update( fm1Indom.nlme,
random = pdDiag(A1 + lrc1 + A2 ~ 1) )
debugging nlme gives the following output:
Browse[1]> n
debug: modelResid <- ~eval(model, data.frame(data, getParsN...
2006 Aug 24
0
syntax for pdDiag (nlme)
At the top of page 283 of Pinheiro and Bates, a covariance structure for
the indomethicin example is specified as
random = pdDiag(A1 + lrc1 + A2 + lrc2 ~ 1)
The argument to pdDiag() looks like a two-sided formula, and I'm struggling
to reconcile this with the syntax described in Ch4 of the book and online.
Further down page 283 the formula is translated into
list(A1 ~ 1, lrc1 ~ 1...
2005 Feb 02
4
(no subject)
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