Posts Tagged ‘ lmer ’

GLMM Hell

July 7, 2011
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GLMM Hell

I have been starting to analyze some data I have of repeated counts of salamanders from 5 plots over 4 years. I am trying to develop a predictive model of salamander nighttime surface activity as a function of weather variables. The repeated counting l...

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Mixed models – Part 2: lme lmer

February 15, 2011
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Mixed models – Part 2: lme lmer

Getting more into mixed models, I’ve been playing around with both nlme::lme and lme4::lmer. http://tolstoy.newcastle.edu.au/R/e2/help/06/10/3345.html was quite a good post at explaining the differences, which from what I gather is largely performance based when using crossed or partially crossed models. In the models I am tinkering with at the moment I am noticing differences in

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Introducing Influence.ME: Tools for detecting influential data in mixed models

April 29, 2009
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I’m highly excited to announce that influence.ME is now available. Influence.ME is a new software package for R, providing statistical tools for detecting influential data in mixed models. It has been developed by Rense Nieuwenhuis, Ben Pelzer, a...

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useR! 2009 acceptance: presenting influence.ME

April 23, 2009
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The organizing committee of the useR! 2009 conference just informed me, that my submission for presenting my extension package influence.ME, has been accepted! Influence.ME is a new R package that I’m currently developing, with the indispensable ...

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R-Sessions 31: Combining lmer output in a single table (UPDATED)

February 5, 2009
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There are various ways of getting your output from R to your publication draft. Most of them are highly efficient, but unfortunately I couldn’t find a function that combines the output from several (lmer) models and presents it in a single table....

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