Dear all,
In our romance with MCMCglmm package in R a question arose which we have trouble addressing.
How to properly interpret the "strength" or importance of the phylo effect in our model described as G-structure in numerical values? I'am including below the output of our model. We failed to find any comprehensive information on the proper interpretation of this parameter.
If you would be so kind to give a brief description or reference to materials on the subject I would greatly appreciate it.
DIC: -110.0825
G-structure: ~species
post.mean l-95% CI u-95% CI eff.samp
species 0.05643 6.245e-39 0.1789 1935
R-structure: ~units
post.mean l-95% CI u-95% CI eff.samp
units 0.03674 0.03025 0.04366 712.2
Location effects: log.fat.content ~ log.live.lean.mass.w.chitin + sex * season
post.mean l-95% CI u-95% CI eff.samp pMCMC
(Intercept) -0.03023 -0.69297 0.75244 1005.3 0.86671
log.live.lean.mass.w.chitin 0.53737 0.21619 0.80309 700.3 0.00161 **
sexMale 0.17146 0.10489 0.23529 4959.0 < 2e-04 ***
seasonSpring 0.25401 0.18139 0.33403 4811.3 < 2e-04 ***
sexMale:seasonSpring -0.34973 -0.45863 -0.24046 4959.0 < 2e-04 ***
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Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Kind regards
Bartosz Schramm
http://www.mpcm-evolution.org/practice/online-practical-material-chapter-11/chapter-11-1-simple-model-mcmcglmm