Displaying 2 results from an estimated 2 matches for "trtmnt2".
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trtmn2
2009 May 18
2
Overdispersion using repeated measures lmer
...22903 -3.491 0.000481 ***
Treatment2.Radiata:Month 0.048868 0.033340 1.466 0.142717
Treatment3.Aldabra:Month 0.077697 0.033340 2.330 0.019781 *
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Signif. codes: 0 ?***? 0.001 ?**? 0.01 ?*? 0.05 ?.? 0.1 ? ? 1
Correlation of Fixed Effects:
(Intr) Trt2.R Trt3.A Month T2.R:M
Trtmnt2.Rdt -0.533
Trtmnt3.Ald -0.533 0.450
Month -0.572 0.585 0.585
Trtmnt2.R:M 0.474 -0.882 -0.402 -0.661
Trtmnt3.A:M 0.474 -0.402 -0.882 -0.661 0.454
Any advice on how to account for overdispersion would be much appreciated.
Many thanks in advance
Christine
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Christi...
2010 Nov 18
1
lme Random Effects and Covariates
1. I'm attempting to test for Random Effects. I've grouped the data on
subject (grid) but want to use lme to build the model without subject as a
RE then add it and do anova between the 2 models. This is the result I get
and it appears it's adding Random Effects.
tmp.dat4 <- groupedData(Trials ~ 1 | grid, data = tmp.dat4)
mod2a <- lme(Trials ~ factor(group_id) + reversal,