Displaying 1 result from an estimated 1 matches for "lakedata".
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fakedata
2012 Feb 17
2
lmer - error message
...1 2 0.148 2008
3 TOM 1 3 0.119 2009
4 TOM 1 4 0.053 2010
5 JAN 2 1 0.352 2009
6 JAN 2 2 0.118 2010
The model I'm trying to fit is:
m1 <- lmer(Increment ~ 0 + Age + Age*lake + (1|Year) + (1|Year:Age) +
(1|FishID),lakedata)
The error message I get is: *"Error in mer_finalize(ans) : Downdated X'X is
not positive definite, 27."*
*
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>From reading up on the subject, I think my problem is that I can't
incorporate the 'lake' variable in a fixed-effect interaction because it is
only has one bi...