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day1
2011 May 16
2
Post-hoc tests in MASS using glm.nb
...<-glm.nb(Cells~Cryogel+Day+Day:Cryogel)
The output gives me comparisons between levels of the factors relative to a
reference level (Day 0 and Cryogel 1) as follows:
Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) 1.2040 0.2743 4.389 1.14e-05 ***
Day14 3.3226 0.3440 9.658 < 2e-16 ***
Day28 3.3546 0.3440 9.752 < 2e-16 ***
Day7 3.3638 0.3440 9.779 < 2e-16 ***
Cryogel2 0.7097 0.3655 1.942 0.05215 .
Cryogel3 0.7259 0.3651 1.988 0.04677 *
Cryogel4...