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sitelc
2011 Dec 24
1
Nested model - "singularities not defined"
I am using a nested model in R and the lm output shows 47 not defined
because of singularities and I have no idea why. Any help on why this is
happening or how to fix this problem would be very much appreciated. Below
is the output I received from R.
Thanks and happy holidays!
Call:
lm(formula = Dist ~ Treatment/SiteL/Territory)
Residuals:
Min 1Q Median 3Q Max
-6.646 -1.443
2006 Feb 04
1
Mixed models and missing p-value...
...fects:
Groups Name Variance Std.Dev.
patelle (Intercept) 34.995 5.9157
Residual 744.736 27.2899
# of obs: 123, groups: patelle, 33
Fixed effects:
Estimate Std. Error t value
(Intercept) 60.3483 4.3929 13.7378
siteLCN -20.1969 7.8070 -2.5870
siteLCS -18.2154 6.1514 -2.9612
Correlation of Fixed Effects:
(Intr) sitLCN
siteLCN -0.563
siteLCS -0.714 0.402
I don't understand why D.F. and p-values associated to the fixed-effects
coefficients are missing.
Could anyone help me?
When I tried another model (mod2<-lmer(nb ~ s...