[S] Unorthodox behaviour of lme

Luciano Molinari (molinari@kispi.unizh.ch)
Mon, 30 Nov 1998 19:43:25 +0100


I was somewhat disturbed by the following:
-----------------------------------
S+>zzla_lme(puls~age,random=~age,data=puls.n,cluster=~subject) #This is OK

S+>zzla_lme(log(puls)~age,random=~age,data=puls.n,cluster=~subject)
Error in Math.data.frame(x): Non-numeric (non-complex) variable: subject
Dumped

S+>zzlp_log(puls.n$puls)
S+>zzlla_lme(zzlp~age,random=~age,data=puls.n,cluster=~subject) #OK again
---------------------------
Any suggestion?
L. Molinari

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