Displaying 5 results from an estimated 5 matches for "multicomparison".
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multicomparisons
2004 Sep 24
1
anova and post hoc multicomparison tests
Hello everyone,
Like a lot of people, I have been looking for functions in R doing ANOVA
(ok) and performing multicomparisons (like Student-Newman-Keuls, etc.).
As I have been a little bit disappointed, I have bee looking through the
net for such "open source" softwares. I found one in:
http://www.statpages.org/miller/openstat/OS4.html
I have begun to use it, and it seems good and simple to understand (as
for a...
2012 Feb 06
2
glht (multicomparisons) with a binomial response variable
...contrast, but, What should i use
for a binary response variable?
Any advice, please?
-----
Mario Garrido Escudero
PhD student
Dpto. de Biolog?a Animal, Ecolog?a, Parasitolog?a, Edafolog?a y Qca. Agr?cola
Universidad de Salamanca
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Sent from the R help mailing list archive at Nabble.com.
2012 Jan 12
0
glht (multicomparisons) with an interaction factor
...dimensions of coefficients and covariance matrix don't match
Anyone can helps?
-----
Mario Garrido Escudero
PhD student
Dpto. de Biolog?a Animal, Ecolog?a, Parasitolog?a, Edafolog?a y Qca. Agr?cola
Universidad de Salamanca
--
View this message in context: http://r.789695.n4.nabble.com/glht-multicomparisons-with-an-interaction-factor-tp4288343p4288343.html
Sent from the R help mailing list archive at Nabble.com.
2011 Feb 08
0
glht{multcomp} : use with lme {nlme}
Hi dears,
I do
> CHOL<-lme(chol~rt*cd4+sex+age+rf+nadir+pharmac+factor(hcv)+factor(hbs)+
haartd+hivdur+factor(arv),
random= ~rt|id, na.action=na.omit)
...runs sweet,..then
....try a multicomparisons approach for the categorical rf
> summary(glht(CHOL, linfct=mcp(rf="Tukey")))
*
Error in model.frame.default(object, data, xlev = xlev) :
l'oggetto non è una matrice *
<-- Object isn't a matrix!!*
Errore in factor_contrasts(model) :
no ‘model.matrix’ method for ‘mo...
2012 Nov 19
0
glht function in multcomp gives unexpected p=1 for all comparisons
...n to me why p=1 for all comparisons even though the GLM showed that the treatment main effect was highly significant?
I searched in the archives and found two similar questions, but without helpful answers:
http://r.789695.n4.nabble.com/glht-problem-tt890671.html
http://r.789695.n4.nabble.com/glht-multicomparisons-with-a-binomial-response-variable-tt4360898.html
Thank-you in advance!
Katie?