Displaying 20 results from an estimated 4000 matches similar to: "More basic equivalent of TukeyHSD"
2008 Aug 29
2
non-parametric Anova and tukeyHSD
I have insect data from twelve sites and like most environmental data
it is non-normal mostly. I would like to preform an anova and a means
seperation like tukey's HSD in a nonparametric sense (on some sort of
central tendency measure - median?). I am searching around at this
time on the internet. Any suggestions, books, etc. would be greatly
appreciated.
--
Stephen Sefick
Research
2004 Jun 08
0
interaction plot with intervals based on TukeyHSD
Hi,
The problem is that I would like to do an interaction plot with
intervals based on Tukey's honestly significant difference (HSD)
procedure, but I do not know how to do it in R.
I have 3 factors "A", "B" and "C" and a response variable "response".
I would like to study a model where there are main effects and second
order interaction effects.
2007 Jun 28
2
TukeyHSD
Hello everyone,
So I ran an anova with aov and then I want to run post-hoc comparisons but
keep receiving this message :
> no applicable method for "TukeyHSD"
Here is my code:
> d<-read.table("d.txt")
> d
> Obs subj Hand Gaze RT
> 1 1 s1 1 1 401.4
> 2 2 s2 1 1 363.3......
> summary(ano <-
2010 Oct 22
2
visualize TukeyHSD results
I am a new R user but a long time SAS user. I searched for a response to this question but no luck, so forgive me if this topic has been covered before. I am running a TukeyHSD post hoc test after running an ANOVA. I get the results of all pairwise comparisons, no problem. However, the output table is a little "busy", and I'd like to make the output easier to read. Specifically, I
2012 Jan 02
1
Is using glht with "Tukey" for lme post-hoc comparisons an appropriate substitute to TukeyHSD?
Hello,
I am trying to determine the most appropriate way to run post-hoc
comparisons on my lme model. I had originally planned to use Tukey
HSD method as I am interested in all possible comparisons between my
treatment levels. TukeyHSD, however, does not work with lme. The
only other code that I was able to find, and which also seems to be
widely used, is glht specified with Tukey:
2004 Dec 15
1
TukeyHSD & Covariates
Dear R gurus,
I have the following model:
appcov.aov <- aov(yield ~ prevyield + trt + block)
where prevyield is a continuous numeric covariate and trt and block are
factors (yes, I did factor()!)
Now, when I do a TukeyHSD, my diff's are all screwed up!
For instance:
treatment mean for treatmen "E" is 277.25 and for treatment "O" is
279.5, so I figure the diff O-E
2008 Mar 25
1
Subset of matrix
Dear R users
I have a big matrix like
6021 1188 790 290 1174 1015 1990 6613 6288
100714
6021 1 0.658 0.688 0.474 0.262 0.163 0.137 0.32
0.252 0.206
1188 0.658 1 0.917 0.245 0.331 0.122 0.148 0.194
0.168 0.171
790 0.688 0.917 1 0.243 0.31 0.122 0.15 0.19
0.171 0.174
290 0.474
2009 Feb 23
1
why results from regression tree (rpart) are totally inconsistent with ordinary regression
Hi,
In my analysis of impacts of insecticide-treated bednets on malaria, I
look at the relationship between malaria incidence and mosquito
behaviors. The condensed data set is copied here. Ordinary regression
(lm) shows that Incidence was negatively related to Mortality. This
makes sense because the latter reflected the strength of killing
mosquitoes by insecticide-treated nets. Since the
2013 Jan 14
1
Tukey HSD plot with lines indicating (non-)significance
Dear list members,
I'm running some tests looking at differences between means for various
levels of a factor, using Tukey's HSD method.
I would like to plot the data as boxplots or dotplots, with horizontal
significance lines indicating which groups are statistically
significantly different, according to Tukey HSD. Here's a nice image
showing an example of such a graphical
2007 May 17
1
asterisk setup for church / conference call / speaker system integration
We have several people in our church that recently became disabled. I am
thinking of setting up an asterisk server and several phone lined so
that they can call in to church during services to listen to the service.
The phone lines at church are also used by our private school during the
week. So I am thinking that I need to setup a schedule so that the
lines used for the service will
2011 Oct 05
1
Dealing with proportions
Dear list,
I have very little experience in dealing with proportions, i am sure this is a very simple question but i could find no suitable answer beyond doing a chi-sq test and then using the Marascuilo procedure as a post-hoc analysis.
I am simply wanting to know if the proportions ( i.e the number of Yes / No) significantly differ between the cases and if so which cases are significantly
2005 May 15
3
adjusted p-values with TukeyHSD?
hi list,
i have to ask you again, having tried and searched for several days...
i want to do a TukeyHSD after an Anova, and want to get the adjusted
p-values after the Tukey Correction.
i found the p.adjust function, but it can only correct for "holm",
"hochberg", bonferroni", but not "Tukey".
Is it not possbile to get adjusted p-values after
2013 Dec 10
2
form_tag + fields_for Rails 4
Hi There,
I''m trying to user fields_for inside a form_tag, but i can''t catch it
on my controller.
I just take some html code off to makes it easy to read
my view...
i''m using campuses_path(current_church, @campus) instead form_for
@campus, because my route is like
resources :campuses, :path => ":church/campuses"
<%= form_tag
2013 May 27
6
Backup of large filesystems >500GB
I've a small system that I use to support a number of churches. I
provide web and email for them. My current server is running CentOS 6.3
with paired 1TB drives in a RAID1 configuration. It works well. One
filesystem is very large, >500GB, and contains numerous large files:
SQL, docs, church libraries in ebook and digital form, plus stored
videos of church services.
My problem is that
2013 Jan 13
2
getting TukeyHSD code
Hello R People:
Here's the Saturday night goofy question. I would like to see the
code for TukeyHSD function and I tried the following:
> getAnywhere("TukeyHSD")
A single object matching ?TukeyHSD? was found
It was found in the following places
package:stats
namespace:stats
with value
function (x, which, ordered = FALSE, conf.level = 0.95, ...)
2005 Mar 01
3
Anova with Scheffe Tests
Hi R-people,
I am wanting to run Factorial ANOVA followed by Scheffe tests on some spatial subjective data. I'm comparing X-Y independent coordinates against x-y dependent coordinates. There are only four independent spatial coordinates that form a square.
I am wondering whether I am doing the right thing, because there doesn't seem to be a simple way of doing this. I have attempted to
2007 Oct 24
3
scoping problem
I would like to write a function that computes Tukey's 1 df for
nonadditivity. Here is a simplified version of the function I'd like to
write: (m is an object created by lm):
tukey.test <- function(m) {
m1 <- update(m, ~.+I(predict(m)^2))
summary(m1)$coef
}
The t-test for the added variable is Tukey's test. This won't work:
data(BOD)
m1 <- lm(demand~Time,BOD)
2012 Nov 27
2
Anova
Hi everyone,
I am new to this forum and also new to statistics and I would appreciated it
if someone would take some time to answer my question.
I am analyzing companies in regard to their leverage. I categorized the
companies into 3 groups: small, mid and large. For the group small, I have
55 debt multiples, for mid 42 and for large 72. (Unfortunately I can not
provide my data because it is
2009 Oct 20
1
TukeyHSD no longer working with aov output?
I can prove I've done this before, but I recently installed Rexcel (and it
was easiest to reinstall R and some other bits to make it work) and now its
no longer working.
Before I would do an ANOVA and a tukey post-hoc like this:
>data1.aov=aov(result~factor1*factor2, data=data1)
then...
>TukeyHSD(summary(data1.aov))
and it would give me a nice tukey table of all the pairwise
2003 Aug 13
1
anova and tukeyHSD
I would like to do a one way anova and then a tukeyHSD. I have three vectors
A,B and C. In a previous help message, I was told to do the following for
the anova:
y = c(A,B,C)
group = factor(rep(a:3,c(7,9,13))) #provided there a 7 elements in A,9 in B
and 13 in C
and then
anova(lm(y~group))
Looking at the tukeyHSD method it looks like it wants the aov method which I
don't understand.