Displaying 3 results from an estimated 3 matches for "semio".
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semi
2009 Mar 22
1
Multiple Comparisons for (multicomp - glht) for glm negative binomial (glm.nb)
Hi
I have some experimental data where I have counts of the number of
insects collected to different trap types rotated through 5 different
location (variable -location), 4 different chemical attractants [A, B,
C, D] were applied to the traps (variable - semio) and all were
trialled at two different CO2 release rates [1, 2] (variable CO2) I also
have a selection of continuous variables measuring meteorological
conditions to account for any bias cause by changing weather conditions,
the data is over dispersed so I have fitted a negative binomial glm
(glm....
2008 Sep 03
2
ANCOVA/glm missing/ignored interaction combinations
...sis (as I have
more covariates and need to take account of over-dispersion etc etc) but
as I am sure it is only a simple problem but I just can't see how to fix
it.
I have a data set with count data as the response (total) and two
continuous covariates and one categorical explanatory variable (semio).
When I run the following lines, after loading the data and assigning
'semio' as a factor, taking into account that I want to consider two way
interactions:
> model.a<-glm(total~(temperature+humidity+semio)^2,family=poisson)
> summary(model.a)
I get the output below. But not all...
2003 Dec 01
0
No subject
...cept one doesn't
need to enter a FreeBSD username and password. Why
this single user has to?
Thanks a lot
Eric
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