Displaying 20 results from an estimated 5000 matches similar to: "Nemenyi test for two way layout data."
2005 May 02
2
Nonparametric Tukey-type multiple comparisons "Nemenyi" test
I am trying to do a Nonparametric Tukey-type multiple comparison
post-hoc test to determine which groups are significantly different. I
have read the dialogue on this topic from the R-help, and am still not
clear why no statistical packages include this test as an option? Is it
not an appropriate test to conduct on non-normally distributed data? Is
the only option to calculate it by hand
2010 Sep 16
1
Nemenyi test as a post-hoc test to Kruskal Wallis
Dear all,
I've discovered the possibility to do the Nemenyi-Damico-Wolfe-Dunn test in the library(coin); oneway_test()
With the given example I am unfortunately not able to reproduce the test. What does trafo and contrMat mean?
I have a dataframe with 176 elements in 7 classes. It may be a problem, that my model isn't balanced? In Class1 I happen to have 4 elements, while there are 90 in
2010 Feb 02
0
Recommendations on nonparametric statistical inference textbooks
Could somebody recommend some good nonparametric statistical inference
textbooks for a beginner? And what are pros and cons of each book?
Nonparametric statistical methods by Hollander seems to be more
difficult for a beginner, but is great as a reference, right? Are
there any books that are easier to learn than Hollander's?
Also, I see some books in the wiki page. I don't find the
2001 Oct 26
1
ks.test (PR#1004)
The note to 1004 says "fixed for 1.3.1"
Uh. No. It ain't.
The problem was more serious than guessed as even the simplest testing
would show.
For example, Example 5.4 in Hollander and Wolfe (Nonparametric Statistical,
Methods, 2nd ed., Wiley, 1999, pp. 180-181)
R Version 1.3.1 (SuSE Linux 7.1)
> X <-
2009 Mar 30
0
Kruskal-Wallis-test: Posthoc-test?
Hello.
We have some questions concerning the statistical analysis of a dataset.
We aim to compare the sample means of more than 2 independent samples; the
sample sizes are unbalanced. The requirements of normality distribution and
variance homogeneity were not met even after transforming the data. Thus we
applied a nonparametric test: the Kruskal-Wallis-test (H-Test). The null
hypothesis was
2000 Nov 16
0
European Meeting of Statisticians, Funchal, August 2001
Apologies for cross-postings.
======================================
First announcement and call for papers
======================================
The 23rd European Meeting of Statisticians will be held at Funchal,
capital of the Portuguese island of Madeira, from 13-18 August 2001,
under the auspices of the European Regional Committee of the
Bernoulli Society.
For more information see the
2005 Oct 27
0
where is Jim Lemon? (PR#8259)
This concerns the contributed package "concord". Sorry to bother
you with it, but my attempt to contact the author/maintainer
failed (see below). Perhaps you can forward it, or let me
know where to send it.
Regards, Rob Kushler
------------------------------------------------------
This is the Postfix program at host tak.itd.uts.edu.au.
I'm sorry to have to inform you that
2012 Mar 26
0
Different result with "kruskal.test" and post-hoc analysis with Nemenyi-Damico-Wolfe-Dunn test implemented in the help page for oneway_test in the coin package that uses multcomp
Dear Researchers,
Sorry for this email but I am not a statistician, and for this I have this
problem to understand. Thanks in Advance for help and suggestions.
Gianni
I have 21 classes (00, 01, 02, 04, ....,020) with different length. I did a
kruskal wall test in R with the following code
kruskal.test(m.class.l, m.class.length.lf)
Kruskal-Wallis rank sum test
data: m.class.l and
2012 Jan 09
2
Unexpected results using the oneway_test in the coin package
Dear fellow R users,
Keywords: Kruskal-Wallis, Post-Hoc, pair-wise comparisons, Nemenyi-Damico-Wolfe-Dunn test, coin package, oneway_test
I am using the "oneway_test" function in the R package "coin" and I am obtaining results which I cannot believe are accurate. I do not wish to waste anyone's time and so if the following problem is rather trivial, I apologize, however I
2004 Dec 13
1
Friedman test for replicated blocked data
Hi,
I would need to extend the Friedman test to a replicated
design. Currently the function: friedman.test(y, ...) only works for
unreplicated designs.
I found in Conover 1999 "Practical Nonparamteric statistics" an
extension of the formula to my case.
Nevertheless, other sources, like Sheskin 2000 "Parametric and
Nonparametric statistical Procedures" and Daniel 1990
2004 Sep 07
1
Multiple comparisons in a non parametric case
Dear all,
I am conducting a full factorial analysis. I have one factor consisting
in algorithms, which I consider my treatments, and another factor made
of the problems I want to solve. For each problem I obtain a response
variable which is stochastic. I replicate the measure of this response
value 10 times.
When I apply ANOVA the assumptions do not hold, hence I must rely on non
parametric
2023 Mar 31
1
Extraer texto de una columna en Excel
Muchas gracias por la alternativa de utilizar la librería stringi, Carlos,
no la conocía.
On Fri, 31 Mar 2023 at 12:11, David Camilo Gomez Medina <
dcgomezme en unal.edu.co> wrote:
> Muchas gracias Carlos, lo que quiero hacer es lo siguiente: extraer el
> texto que hay entre textura/s hasta el punto final.
> Ejemplo:
> *Moderadamente profundos, bien drenados, de textura franco
2023 Jan 18
1
Suma de datos de una tabla
No sé si olvidé aclarar, pero quiero crear una lista para cada columna y
así almacenar esos valores.
On Wed, 18 Jan 2023 at 14:13, David Camilo Gomez Medina <
dcgomezme en unal.edu.co> wrote:
> Hola Carlos.
>
> Por ejemplo la segunda columna (16040050), quiero sumar todos los datos de
> esa columna correspondientes al año 2000 (quiero relacionarlos con la
> primera columna
2006 Jan 29
0
Bug in wilcox.test
There is a fairly new bug in wilcox.test in R-2.2.1 (stable).
It wasn't there when I last taught nonparametrics in fall 2003.
Line 86 of wilcox.test.R
achieved.alpha<-2*psignrank(trunc(qu),n)
It should be
achieved.alpha<-2*psignrank(trunc(qu)-1,n)
If you don't see why, decode the cookbook instructions p. 56 in
Hollander and Wolfe (2nd ed.) or see
2023 Jan 18
1
Suma de datos de una tabla
Hola Carlos.
Por ejemplo la segunda columna (16040050), quiero sumar todos los datos de
esa columna correspondientes al año 2000 (quiero relacionarlos con la
primera columna donde está la fecha) y ese valor almacenarlo en una lista y
así sucesivamente con los demás años y con las demás columnas.
Tengo pensado una lista así:
est_16040050
[[2000]]
[1] 2.3
[[2001]]
[1] 1.7
[[2002]]
[1] 4.8
2023 Mar 31
1
Extraer texto de una columna en Excel
Muchas gracias Carlos, lo que quiero hacer es lo siguiente: extraer el
texto que hay entre textura/s hasta el punto final.
Ejemplo:
*Moderadamente profundos, bien drenados, de textura franco arenosa a franco
arcillo arenosa. Fertilidad natural media*
Lo que quiero extraer sería: *franco arenosa a franco arcillo arenosa *
Al final lo pude realizar de la siguiente manera:
df <-
2023 Feb 21
1
Interpolación IDW
Emilio, muchas gracias. Tuve que rehacer el código para entender mejor
todo, pero me sale el siguiente error:
*Error in as.data.frame.default(x[[i]], optional = TRUE) : cannot coerce
class ?structure("RasterLayer", package = "raster")? to a data.frame*
El código es el siguiente:
*for (i in 1:nrows_mt) { data_it_mt <-
2006 Nov 24
0
New package `np' - nonparametric kernel smoothing methods for mixed datatypes
Dear R users,
A new package titled `np' is now available from CRAN.
The package implements recently developed kernel methods that seamlessly
handle the mix of continuous, unordered, and ordered factor datatypes
often found in applied settings.
The package also allows users to create their own
nonparametric/semiparametric routines using high-level function calls
(via the function npksum())
2006 Nov 24
0
New package `np' - nonparametric kernel smoothing methods for mixed datatypes
Dear R users,
A new package titled `np' is now available from CRAN.
The package implements recently developed kernel methods that seamlessly
handle the mix of continuous, unordered, and ordered factor datatypes
often found in applied settings.
The package also allows users to create their own
nonparametric/semiparametric routines using high-level function calls
(via the function npksum())
2008 Mar 06
1
kruskal wallis post hoc test in R
Hello,
I need nemenyi-test or any other post-hoc test for kruskal-wallis, but I
just can't find out how to implement this in R.
My data set is nitrite concentrations in four different groups which I
intend to compare. The kruskal-wallis-test showed significance, but I
still don't know between which groups these significances are.
Can anybody help me with this?
Thanks