Displaying 5 results from an estimated 5 matches for "sidak".
2005 Jul 14
2
Partek has Dunn-Sidak Multiple Test Correction. Is this the same/similar to any of R's p.adjust.methods?
The Partek package (www.partek.com) allows only two selections for Multiple
Test Correction: Bonferroni and Dunn-Sidak. Can anyone suggest why Partek
implemented Dunn-Sidak and not the other methods that R has? Is there any
particular advantage to the Dunn-Sidak method?
R knows about these methods (in R 2.1.1):
> p.adjust.methods
[1] "holm" "hochberg" "hommel" "bonferroni&qu...
2008 Mar 31
0
MANOVA, SCC and multiple comparisons
...link with a PCA on Instrumental Variables ? The explaination in the
article was not clear for us.
2/ As in a ANOVA, we wanted to realize mean comparisons. Marieta et al.
used bivariate pairwise contrasts of a factor within each level of the
other factor (for significant interactions) using Dunn-Sidak method and
univariate contrasts of pairs of main effects (for significant main
effects) using Dunn-Sidak method. We tried to use the glht() function
(from multcomp package) without success because of the nature of
manova() object. Has someone an helpful advice to give ?
Merci beaucoup, (Thanks...
2001 Dec 12
1
again evaluations
Hello, I wrote the following function to compute multiple comparisons in
a one way anova and randomized blocks anova.
aov1 <- function(y,g,s=NULL,comp="mca",meth="Sidak") {
#
fun <- function(x)
c(mean(x,na.rm=T),sd(x,na.rm=T),length(x[!is.na(x)]))
#
li <- length(unique(g))
cat(" Analysis of Variance with Multiple comparisons\n\n")
cat(" Groups : ",li,"\n")
t <- tapply(y,g,fun)
a <- array(c(t,recursi...
2006 Feb 15
3
wilcox.test returned estimates
Hi all,
I have being using wilcox.test to test for differences between 2 independent
samples. I had understood the difference in location to be conventionally the
difference in the sample medians however this is not the case when implemented
in R. I have tied ranks and therefore non-exact p-value and confidence
intervals are calculated due to the normal approximation. But what exactly is
this
2001 Dec 17
1
environments again
....1,
36.0,34.2,31.2,31.8,28.0,29.2,38.2,37.8,31.9,
32.5,31.1,29.7)
g <- rep(1:7,rep(3,7))
s <- rep(1:3,7)
cat(" Only x and g \n")
aov1(x,g)
cat("\n\n Now x, g and s \n")
aov1(x,g,s=s)
}
aov1 <- function(y,g,s=NULL,comp="mca",meth="Sidak") {
#
fun <- function(x)
c(mean(x,na.rm=T),sd(x,na.rm=T),length(x[!is.na(x)]))
#
li <- length(unique(g))
cat(" Analysis of Variance with Multiple comparisons\n\n")
cat(" Groups : ",li,"\n")
t <- tapply(y,g,fun)
a <- array(c(t,recursi...