Displaying 3 results from an estimated 3 matches for "ltotinv".
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lto'ing
2002 Jul 11
2
Nested anovas in R not doing what they ought to...
...to check the list today for replies.
I am currently attempting to perform an ANOVA with both nested and normal factors. My problem is that R is treating my nested factors the exact same way as it would interaction terms.
My output for the nested model is as follows:
> nested <- anova(lm(ltotinv ~ habitat + fish/lake + habitat:fish + habitat:(la\
ke %in% fish)))
> nested
Analysis of Variance Table
Response: ltotinv
Df Sum Sq Mean Sq F value Pr(>F)
habitat 1 17.0829 17.0829 50.0917 3.083e-09 ***
fish 1 0.9131 0.9131 2.6774 0.107600...
2004 Apr 01
2
modelling nested random effects with interactions in R
...va, with random factor "lakefac" nested within
factor "fishfac" (fixed), with an additional fixed factor "Habfac". If I
consider everything as fixed effects, it's addmittedly not the correct model,
but I can at least get this to work:
> nested <- anova(lm(ltotinv ~ habfac + fishfac/lakefac + habfac:fishfac +
habfac:(lakefac %in% fishfac)))
> nested
Analysis of Variance Table
Response: ltotinv
Df Sum Sq Mean Sq F value Pr(>F)
habfac 2 17.3140 8.6570 25.0568 3.534e-08 ***
fishfac 1 0.91...
2002 May 03
0
Nested anovas in R
...d you please cc: a response
to me?
I am currently attempting to perform an ANOVA with both nested and normal
factors. My problem is that R is treating my nested factors the exact same
way as it would interaction terms.
My output for the nested model is as follows:
> nested <- anova(lm(ltotinv ~ habitat + fish/lake + habitat:fish +
habitat:(la\
ke %in% fish)))
> nested
Analysis of Variance Table
Response: ltotinv
Df Sum Sq Mean Sq F value Pr(>F)
habitat 1 17.0829 17.0829 50.0917 3.083e-09 ***
fish 1 0.9131 0.9131 2.6774 0.10760...