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LME Question
2 messages · John Michel, Hugo.Mildenberger at web.de
On Mon, 18 Feb 2013 16:13:07 +0000 John Michel <jwmichel at loyola.edu> wrote:
I am trying to run a linear mixed effects model on some data I have. My participants are nested within 27 organizations so I have to control for this group. I have three dependent variables (sales, tips, and employee performance) when I attempt to calculate the null model for these three DVs I get the following error message below:
Null.SALES<-lme(SALES~1,random=~1|GROUP,data=tccbtips)
Error in `rownames<-`(`*tmp*`, value = rownames(Fitted) <- origOrder) : attempt to set rownames on object with no dimensions In addition: Warning message: In Ops.factor(y[revOrder], Fitted) : - not meaningful for factors
Is SALES possibly also a factor?