Displaying 20 results from an estimated 1000 matches similar to: "p.adjust.Rd sugggestion"
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"
2010 Aug 08
1
p.adjust( , fdr)
Hello,
I am not sure about the p.adjust( , fdr). How do these adjusted p-values
get?
I have read papers of BH method. For independent case, we compare the
ordered p-values with the alfa*i/m, where m is the number of tests. But I
have checked that result based on the adjusted p-values is different with
that by using the independent case method.
Then how do the result of p.adjust( , fdr) come?
And
2004 Dec 20
1
[BioC] limma, FDR, and p.adjust
You asked the same question on the Bioconductor mailing list back in August. At that time, you
suggested yourself a solution for how the adjusted p-values should be interpreted. I answered
your query and told you that your interpretation was correct. So I'm not sure what more can be
said, except that you should read the article Wright (1992), which is cited in the help entry for
p.adjust(),
2005 Jan 16
1
p.adjust(<NA>s), was "Re: [BioC] limma and p-values"
I append below a suggested update for p.adjust().
1. A new method "yh" for control of FDR is included which is valid for any
dependency structure. Reference is Benjamini, Y., and Yekutieli, D. (2001).
The control of the false discovery rate in multiple testing under
dependency. Annals of Statistics 29, 1165-1188.
2. I've re-named the "fdr" method to "bh" but
2018 Jul 23
1
Suggestion for updating `p.adjust` with new method (BKY 2006)
Dear R contributors,
I suggest adding a new method to `p.adjust` ("Adjust P-values for Multiple
Comparisons",
https://stat.ethz.ch/R-manual/R-devel/library/stats/html/p.adjust.html).
This new method is published in Benjamini, Krieger, Yekutieli 2016 Adaptive
linear step-up procedures that control the false discovery rate
(Biometrika). https://doi.org/10.1093/biomet/93.3.491
This paper
2004 Dec 19
1
limma, FDR, and p.adjust
I am posting this to both R and BioC communities because I believe there
is a lot of confusion on this topic in both communities (having searched
the mail archives of both) and I am hoping that someone will have
information that can be shared with both communities.
I have seen countless questions on the BioC list regarding limma
(Bioconductor) and its calculation of FDR. Some of them involved
2004 Dec 19
1
limma, FDR, and p.adjust
I am posting this to both R and BioC communities because I believe there
is a lot of confusion on this topic in both communities (having searched
the mail archives of both) and I am hoping that someone will have
information that can be shared with both communities.
I have seen countless questions on the BioC list regarding limma
(Bioconductor) and its calculation of FDR. Some of them involved
2011 Sep 30
1
Hi
Hi,
There is a question that I am confused.
I have a set of data like this:
hsa-miR-205--GATA3 0.797882767 1.08E-13
hsa-miR-205--ITGB4 0.750217593 1.85E-11
hsa-miR-187--PGF 0.797604155 3.24E-11
hsa-miR-205--SERPINB5 0.744124886 3.28E-11
hsa-miR-205--PBX1 0.734487224 7.89E-11
hsa-miR-205--MCC 0.72499934 1.80E-10
hsa-miR-205--WNT5B 0.717705259 3.33E-10
hsa-miR-200c--PKN2 0.721746815
2004 Dec 20
1
Re: [BioC] limma, FDR, and p.adjust
Mark,
there is a fdr website link via Yoav Benjamini's homepage which is: http://www.math.tau.ac.il/%7Eroee/index.htm
On it you can download an S-Plus function (under the downloads link) which calculates the false discovery rate threshold alpha level using stepup, stepdown, dependence methods etc.
Some changes are required to the plotting code when porting it to R. I removed the
2011 Oct 04
1
a question about sort and BH
Hi,
I have two questions want to ask.
1. If I have a matrix like this, and I want to figure out the rows whose
value in the 3rd column are less than 0.05. How can I do it with R.
hsa-let-7a--MBTD1 0.528239197 2.41E-05
hsa-let-7a--APOBEC1 0.507869409 5.51E-05
hsa-let-7a--PAPOLA 0.470451884 0.000221774
hsa-let-7a--NF2 0.469280186 0.000231065
hsa-let-7a--SLC17A5
2010 Jul 13
6
permutation-based FDR
Hola a todos,
Tengo un pequeño problemilla...
Tengo unas 9000 variables que he contrastado con 1 en concreto con el test
de wilcoxon. He calculado el p-valor, y queria corregirlo con el
permutation-based FDR. He encontrado una funcion con R comp.fdr()que hace
esta corrección, pero te pide que le pongas las variables con las
observaciones y te hace el test (según he entendido). Yo solo quiero
2025 May 09
2
array-bound error with GCC 13/14
The literanger package is no longer passing on CRAN
(https://CRAN.R-project.org/package=literanger) due to array-bound
warnings in GCC 13.3 and 14.2 (more details below).
This _looks_ to me like one of either a) a compiler bug, b) a false
positive, or c) (very unlikely) something in the standard library
implementation.
Have others seen warnings like this recently, and if so, what have you
done
2025 May 12
1
array-bound error with GCC 13/14
On 5/9/25 03:09, Stephen Wade wrote:
> The literanger package is no longer passing on CRAN
> (https://CRAN.R-project.org/package=literanger) due to array-bound
> warnings in GCC 13.3 and 14.2 (more details below).
>
> This _looks_ to me like one of either a) a compiler bug, b) a false
> positive, or c) (very unlikely) something in the standard library
> implementation.
>
2009 Mar 18
0
p.adjust(p, n) for n>length(p)
Hi all,
I am having a problem with the function "p.adjust" in stats. I have looked at the manuals and searched the R site, but didn't get anything that seems directly relevant. Can anybody throw any light on it or confirm my suspicion that this might be a bug?
I am trying to use the p.adjust() function to do Benjamini/Hochberg FDR control on a vector of p-values that are the
2003 Nov 03
1
FDR in p.adjust
Hello,
I've a question about the fdr method in p.adjust: What is the threshold of
the FDR, and is it possible to change this threshold?
As I understand the FDR (please correct) it adjusts the p-values so that for
less than N% (say the cutoff is 25%) of the alternative hypothesis the Null
is in fact true.
thanks a lot for help,
+regards,
Arne
2009 Feb 11
1
p.adjust; n > length(p) (PR#13519)
Full_Name: Ludo Pagie
Version: 2.8.1
OS: linux
Submission from: (NULL) (194.171.7.39)
p.adjust in stats seems to have a bug in handling n>length(p) for (at least) the
methods 'holm' and 'hochberg'.
For method 'holm' the relevant code:
i <- 1:n
o <- order(p)
ro <- order(o)
pmin(1, cummax((n - i + 1) * p[o]))[ro]
where p is the
1998 Jul 14
1
Are post-hoc tests being developed for R?
Hi-
Is anyone working on multiple comparisons of means or post-hoc tests
(ie: Tukey, Bonferroni) for R? I saw in the winter 98' archives of the R
mailing lists that these tests had not been implemented yet, I was just
wondering if I could look foward to having them. ;-)
I also looked through the contributed packages and didn't see anything
that offered such tests.
I guess I could check
2008 Mar 09
2
p-adjust using Benjamn and Hochberg
Hello,
I am trying to use the p.adjust function for multiple testing.
here is what i have
9997 201674_s_at 0.327547396
9998 221013_s_at 0.834211067
9999 221685_s_at 0.185099475
I import them from excel have have the gene symbol as well as the pvalue
here is the issue
> pa<-p.adjust(pt,method="BH")
Error in p[nna] : object is not
1998 Jul 16
1
R-beta: Re: Post-hoc tests
Matt,
Here's a Bonferroni-corrected multiple one-sample t-test that I wrote
some years ago. It took a while to get it into R, as na.omit doesn't
seem to handle vectors and I had to write a quick kludge (na.remove).
Another more general point was that I discovered that the help page for
t.test gives the name "parameters" for the degrees of freedom, as in S.
However, the name
2015 Aug 30
2
[OT] new R logo in vector graphics format
L.S.
Since some time there is a new r-project.org site as announced here:
https://stat.ethz.ch/pipermail/r-announce/2015/000581.html
The logo has changed on the site, but I fail to find a vector graphics file.
For the previous logo I used to go to
https://svn.r-project.org/R-dev-web/trunk/Logo/
Is there anything similar for the new logo?
Many thanks in advance.
Kind regards,
Tobias
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