Displaying 2 results from an estimated 2 matches for "likleihood".
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likelihood
2011 Mar 08
0
nlme: Computing REML likelihood value from ML likelihood value
...e Restricted Maximum Likelihood (REML) function evaluated at a given set of parameter estimates from the Maximum likelihood (ML) value. Following the book of Fitzmaurice, Laird and Ware (2004) "Applied Longitudinal Analysis" pp101, the REML likelihood can be computed by multiplying the ML likleihood by the square root of the generalized variance of the fixed effects. When working on the log scale, this means:
log.REML = 0.5*(log(det(W))) + log.ML
where W is the covariance matrix of the fixed effects estimates.
However when using the function lme in the nlme package, the REML likelihood valu...
2008 Dec 11
2
Validity of GLM using Gaussian family with sqrt link
Dear all,
I have the following dataset: each row corresponds to count of forest floor small mammal captured in a plot and vegetation characteristics measured at that plot
> sotr
plot cnt herbc herbht
1 1A1 0 37.08 53.54
2 1A3 1 36.27 26.67
3 1A5 0 32.50 30.62
4 1A7 0 56.54 45.63
5 1B2 0 41.66 38.13
6 1B4 0 32.08 37.79
7 1B6 0 33.71 30.62