Displaying 20 results from an estimated 700 matches similar to: "Help with a more flexible funtion for multiple comparision of means"
2005 Sep 12
1
Help with a more flexible funtion for multiple comparisio n of means
Jose -
Before implementing SNK and Duncan's, you may want to be aware of some
criticisms of these methods:
>From Hsu (1996),
"Newman-Keuls multiple range test is not a confident inequalities method and
cannot be recommended."
"Duncan's multiple range test is not a confident inequalities method and
cannot be recommended either. In the words of Tukey (1991),
2006 Feb 16
0
SSQ decomposition and contrasts with ANOVA
Dear R list,
Please, could someone help me with SSQ decomposition and contrasts.
Below my data, graphic, ANOVAs and my doubt:
# Data
a = paste('a', gl(3, 8), sep='')
b = paste('b', gl(2, 4, 24), sep='')
tra = sort(paste('t', rep(1:6, 4), sep=''))
y = c(26.2, 26.0, 25.0, 25.4, 24.8, 24.6, 26.7, 25.2,
25.7, 26.3, 25.1, 26.4, 19.6,
2006 Feb 14
0
ANOVA: Help with SSQ decomposition and contrasts
# Dear R list,
#
# A have a doubt about SSQ decomposition and contrasts with ANOVAs.
# So, I would like a tip from more advanced R users.
# Below my data, the basic script and my doubts:
# Data
r = paste('r', gl(3, 8), sep='')
e = paste('e', rep(gl(2, 4), 3), sep='')
tra = sort(paste('t', rep(1:6, 4), sep=''))
y = c(26.2, 26.0, 25.0, 25.4,
2001 Jun 06
0
snk authentication
Here is a little patch against 2.9p1 that performs the SNK (also known
as TIS authserv) challenge-response automaticly instead of asking the
user. hope you find it useful.
--larry
-------------- next part --------------
diff -NuBw openssh-2.9p1/Makefile.in openssh/Makefile.in
--- openssh-2.9p1/Makefile.in Thu Apr 26 20:31:08 2001
+++ openssh/Makefile.in Wed Jun 6 16:15:56 2001
@@ -43,9 +43,9
2005 Jul 08
5
Help with Mahalanobis
Dear R list,
I'm trying to calculate Mahalanobis distances for 'Species' of 'iris' data
as obtained below:
Squared Distance to Species From Species:
Setosa Versicolor Virginica
Setosa 0 89.86419 179.38471
Versicolor 89.86419 0 17.20107
Virginica 179.38471 17.20107 0
These distances were obtained with proc 'CANDISC'
2011 Jul 08
3
Efectos aleatorios, interaccions y SNK, LSD o Tukey
Queridos R-users:
Tengo una duda que hace mucho tiempo que estoy intentando resolver, os
explico a modo de ejemplo:
Tengo estos efectos: Año(5 niveles),Localidad (10 niveles) y genotipo
(3 niveles), año y localidad son aleatorios y genotipo es fijo (los he
escogido yo).
Me gustaría hacer obtener una tabla parecida a la Tabla Anova donde
aparezca cada factor y sus interacciones y
2007 Jul 23
2
doubt about options(graphics.record=T)
Hi all,
I've been using R under WindowsXP.
So, where the R stores the graphic archives (don't saved) if I use the option
options(graphics.record=T) inside of Rprofile.site file?
Regards,
--
/////\\\\\/////\\\\\/////\\\\\/////\\\\\
Jose Claudio Faria
Brasil/Bahia/UESC/DCET
Estatistica Experimental/Prof. Titular
joseclaudio.faria em terra.com.br
joseclaudio.faria em
2006 Aug 04
2
Doubt about Student t distribution simulation
Dear R list,
I would like to illustrate the origin of the Student t distribution using R.
So, if (sample.mean - pop.mean) / standard.error(sample.mean) has t
distribution with (sample.size - 1) degree free, what is wrong with the
simulation below? I think that the theoretical curve should agree with
the relative frequencies of the t values calculated:
#== begin options=====
# parameters
2005 Jul 10
2
Help to make a specific matrix
Dear R users,
The solution is probably simple but I need someone to point me to it.
How can I to generate a matrix from a numeric sequence of 1:10 like 'A' or 'B'
below:
A)
|--------------------|
| 1 2 3 4 5 |
|--------------------|
| 1 | 0 |
| 2 | 1 0 |
| 3 | 2 5 0 |
| 4 | 3 6 8 0 |
| 5 | 4 7 9 10 0 |
|--------------------|
2005 Sep 15
3
means comparison in R (post-hoc test)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi.
I have been using SAS for some time, and now I have discovered R. I am
very happy with it, but I have not found out how to perform some of the
multiple comparisons I was used to do in SAS.
With the SAS/STAT, I generally used the MEANS (for comparison of
arithmetic means) and the LSMEANS (for adjusted means) statements of the
GLM procedure (I
2005 Aug 04
4
An small suggestion for the R team
Hi all,
I would like to suggest that all R functions/etc like:
codes-deprecated
grid-internal
ns-alt
ns-dblcolon
ns-hooks
ns-internals
ns-lowlev
ns-reflect.Rd
tools-internal
ts-defunct
utils-deprecated
utils-internal
... and another
i.e, function/word separate for '-'
were all substituted by
codes_deprecated
grid_internal
ns_alt
2005 Oct 14
2
Help with lattice, regressions and respective lines
# Dear R list,
#
# I'm needing help with lattice, regression and respective lines.
# My data is below:
bra = gl(2, 24, label = c('c', 's'))
em = rep(gl(3, 8, label = c('po', 'pov', 'ce')), 2)
tem = rep(c(0, 0, 30, 30, 60, 60, 90, 90), 6)
tem2 = tem^2
r = rep(1:2, 24)
y = c(40.58, 44.85, 32.55, 35.68, 64.86, 51.95, 42.52, 52.21,
2004 Dec 17
2
Doubts about chi-square distribution
Dear list,
For educational purposes I have been working with the script below.
I have a observation:
line 31
#CScal[i] = (amo^2) # IT IS WRONG, I KNOW, BUT IT MAKE R TO CRASHES!
I'm thinking this is a possible bug in the R!
And I have a couple of doubts:
1) line 51
#curve(dchisq(x, n-1), add = T, col = 'red'
I think that it is correct, but the function no
2005 May 24
1
Contingency tables from data.frames
Dear list,
I'm trying to do a set of generic functions do make contingency tables from
data.frames. It is just running "nice" (I'm learning R), but I think it can be
better.
I would like to filter the data.frame, i.e, eliminate all not numeric variables.
And I don't know how to make it: please, help me.
Below one of the my functions ('er' is a mention to EasieR,
2004 May 27
1
Statistics Avec R (Vincente Zoonekynd): portuguese translation
Dears friends,
I have been translating and extended, with educational porposes only, the available material in the www
(http://zoonek2.free.fr/UNIX/48_R/all.html) "Statistcs avec R" for the Portuguese of Brazil.
I consider the material very good and would like to share this work with anothers users R.
Already I translated and I extended two chapters: Introduction to the R and analysis
2004 Mar 22
1
Help to compare...
Dear list,
I'm needing submit values (V1 = 8,6,4,3,1,2,9) (Id = 2:8) of a data.frame
(DF), like below
Id V1 V2 ...
1 0 1 ...
2 8 10 ...
3 6 2 ...
4 4 4 ...
5 3 7 ...
6 1 8 ...
7 2 6 ...
8 9 7 ...
9 6 1 ...
10 5 4 ...
to selection (>=2 and <8) for remanescents like below:
Id V1 V2 ...
1 0 1 ...
2 .
2004 May 27
2
ANOVA and contrasts
Dears members of R list,
I would like that a more experienced R user help me to complete
this analysis:
r = gl(3, 8, label = c('r1', 'r2', 'r3'))
e = rep(gl(2, 4, label = c('e1', 'e2')), 3)
y = c(26.2, 26.0, 25.0, 25.4, 24.8, 24.6, 26.7, 25.2, 25.7, 26.3, 25.1, 26.4,
19.6, 21.1, 19.0, 18.6, 22.8, 19.4, 18.8, 19.2, 19.8, 21.4, 22.8, 21.3)
df =
2011 Aug 17
1
contrast package with interactions in gls model
Hi!
I try to explain the efffect of (1) forest where i took samples's soils (*
Lugar*: categorical variable with three levels), (2) nitrogen addition
treatments (*Tra*: categorical variable with two levels) on total carbon
concentration's soil samples (*C: *continue* *variable) during four months
of sampling (*Time:* categorical and ordered variable with four levels).
I fitted the
2003 May 22
0
getGroups, nested mixed model
Hi!
First I would like to thank you for the help with my first question. However,I am afraid I am still into trouble. I think I have properly used the getGropus commad but seems to be a fatal error when calculating the fixed effects (see bellow) and I cannot understand why. Any inputs?
Thanks in advance,
/Jose
hongos1=read.table("c:/temp/hongos1.txt", header=T)
> attach(hongos1)
2010 Sep 29
0
New package GAD (General ANOVA Design)
Hi, everyone.
GAD package analyses complex ANOVA models with any combination of
orthogonal/nested and fixed/random factors, as described by Underwood
(1997). There are two restrictions: (i) data must be balanced; (ii)
fixed nested factors are not allowed. Homogeneity of variances is
checked using Cochran's C test and "a posteriori" comparisons of means
are done using