Displaying 20 results from an estimated 200 matches similar to: "Multiple Correlation coefficient (spearman, Kenall)"
2004 Aug 20
1
drop1 with contr.treatment
Dear R Core Team
I've a proposal to improve drop1(). The function should change the
contrast from the default ("treatment") to "sum". If you fit a
model with an interaction (which ist not signifikant) and you
display the main effect with
drop1( , scope = .~., test = "F")
If you remove the interaction, then everything's okay. There is
no way to fit a
2010 Oct 05
1
Tukey HSD Test als Post Hoc Test nach einem GLM inkl. Anova
Hallo,
zur Analyse von Daten zum Artenreichtum von Pflanzen, habe ich ein Glm (glm)
und anschlie?end eine Anova (anova) durchgef??hrt. Nun m??chte ich f??r die
signifikanten Einflussfaktoren einen Post Hoc Tukey Test durchf??hren, um zu
ermitteln in wie weit die einzelnen Faktorstufen sich signifikant
voneinander unterscheiden.
Mit dem Befehl (TukeyHSD) komme ich nicht
2005 Jul 03
1
Pearson and Spearman correlation coeffcients matrix
Hi everyone,
I've been trying to find a function that outputs the Pearson and/or Spearman
correlation coefficients for several variables with the associated
statistics in one single table/matrix. For what I've been able to understand
the Stats package is only able to compute these coeficients/statistics only
in defined pairs. This becomes time consuming when we want to determine
these
2007 Apr 19
1
is there a function to give significance to correlation?
Dear R-Help,
I am trying to find a function that will give me the significance of the
correlation of 2 variables (in the same dimension arrays) correcting for serial
autocorrelation.
How can I view the function cor.test's code? I would like to know a lot more
detail about the function than written in the documentation at
http://finzi.psych.upenn.edu/R/library/stats/html/cor.test.html
to
2012 Aug 20
1
Kendall package tau-a, b, and c
Hi all,
I would like to ask a question related to Kendall package. I ran Kendall
(x,y) and
saw the results. But I am not sure which tau values R reported. I have
ties in
my data set, so I want tau-b. Can anybody tell how Kendall package is
calculating tau values? I have looked at the package PDF, but I could
not find
any useful information. As long as I see from the following
link, there
2008 Apr 01
1
SEM with a categorical predictor variable
Hi,
we are trying to do structural equation modelling on R. However, one of our
predictor variables is categorical (smoker/nonsmoker). Now, if we want to
run the sem() command (from the sem library), we need to specify a
covariance matrix (cov). However, Pearson's correlation does not work on the
dichotomous variable, so instead we produced a covariance matrix using the
Spearman's (or
2005 Aug 18
2
kendall tau correlation test for ties: Potential error (PR#8076)
Full_Name: Dirk Koschuetzki
Version: 2.1.1
OS: source code
Submission from: (NULL) (194.94.136.34)
Hello,
>From the source code (R-2.1.1, file: .../R-2.1.1/src/library/stats/R/)
******************************
cor.test.default <-
function(x, y, alternative = c("two.sided", "less", "greater"),
method = c("pearson", "kendall",
2016 Apr 11
4
[PATCH 0/7] Fixes for lib-mail message-address
On Thursday 07 April 2016 16:11:12 Timo Sirainen wrote:
> On 06 Apr 2016, at 17:29, Pali Roh?r <pali.rohar at gmail.com> wrote:
> >
> > On Monday 04 April 2016 19:35:22 Pali Roh?r wrote:
> >> On Monday 04 April 2016 19:31:06 aki.tuomi at dovecot.fi wrote:
> >>> Can you please send them directly to me, please?
> >>> ---
> >>> Aki
2016 Apr 06
3
[PATCH 0/7] Fixes for lib-mail message-address
On Monday 04 April 2016 19:35:22 Pali Roh?r wrote:
> On Monday 04 April 2016 19:31:06 aki.tuomi at dovecot.fi wrote:
> > Can you please send them directly to me, please?
> > ---
> > Aki Tuomi
>
> Sent.
Received? Are patches OK now?
--
Pali Roh?r
pali.rohar at gmail.com
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2016 Apr 04
3
[PATCH 0/7] Fixes for lib-mail message-address
> On April 4, 2016 at 8:18 PM Pali Roh?r <pali.rohar at gmail.com> wrote:
>
>
> On Monday 04 April 2016 19:12:56 Pali Roh?r wrote:
> > Hello,
> >
> > I borrowed dovecot parser for email addresses and going to use it in new
> > perl module as replacement for Email::Address. During implementation and
> > testing I found bugs in dovecot parser &
2005 Feb 18
2
Partial structural Change in STRUCCHANGE PACKAGE
Hi,
I am using the Strucchange package in R to test for structural change in regression coeffcient. Given a model y = b0 + b1*X + b2*Z, the Fstats test whether there is a change in both b1 and b2 over a time period.
Is there any way where I can restrict the test to hold b2 constant and test for break in only b1? That is, instead of a pure structural change, could I test for partial structural
2016 Apr 04
2
[PATCH 0/7] Fixes for lib-mail message-address
Hello,
I borrowed dovecot parser for email addresses and going to use it in new
perl module as replacement for Email::Address. During implementation and
testing I found bugs in dovecot parser & generator. So I'm sending my
patches together with tests.
Pali Roh?r (7):
lib-mail: message_address_write: Fix generating empty group list
lib-mail: message_address_write: Fix generating group
2016 Apr 21
2
[PATCH v4 6/6] hwmon: use smp_call_on_cpu() for dell-smm i8k
On Thursday 21 April 2016 15:12:52 Juergen Gross wrote:
> On 21/04/16 12:57, Pali Roh?r wrote:
> > On Tuesday 05 April 2016 21:31:52 Pali Roh?r wrote:
> >> On Tuesday 05 April 2016 16:54:14 Guenter Roeck wrote:
> >>> On Tue, Apr 05, 2016 at 07:10:07AM +0200, Juergen Gross wrote:
> >>>> Use the smp_call_on_cpu() function to call system management
>
2016 Apr 21
2
[PATCH v4 6/6] hwmon: use smp_call_on_cpu() for dell-smm i8k
On Thursday 21 April 2016 15:12:52 Juergen Gross wrote:
> On 21/04/16 12:57, Pali Roh?r wrote:
> > On Tuesday 05 April 2016 21:31:52 Pali Roh?r wrote:
> >> On Tuesday 05 April 2016 16:54:14 Guenter Roeck wrote:
> >>> On Tue, Apr 05, 2016 at 07:10:07AM +0200, Juergen Gross wrote:
> >>>> Use the smp_call_on_cpu() function to call system management
>
2010 Nov 29
1
weighted Spearman correlation coefficient
Hello,
I would be grateful if anybody can help me in finding an R function to
compute weighted Spearman correlation coefficient?
Kind regards,
Daniel
2004 Aug 30
1
Wrong result with cor(x, y, method="spearman", use="complete.obs") with NA's???
Hallo!
Is there an error in cor to calculate Spearman
correlation with cor if there are NA's? cor.test gives
the correct result. At least there is a difference.
Or am I doing something wrong???
Does anybody know something about this?
a<-c(2,4,3,NA)
b<-c(4,1,2,3)
cor(a, b, method="spearman", use="complete.obs")
# -0.9819805
cor.test(a, b,
2009 Feb 20
0
Spearman-Karber method for toxicity data
Dear all,
I tried help.search("karber") and RSiteSearch("karber") and RSiteSearch("*karber*") to find whether the (trimmed) Spearman-Karber method for LD50 evaluation in toxicity data (e.g. according to Hamilton 1977) has been implemented in R. Or does this method feature under a different name? Of course logit and probit are doable, but Spearman-Karber seems to
2005 Jan 25
1
spearman rank test correlation
Hallo,
does anybody know if there is an implementation of the Spearman rank
correlation in R that gives a correct (or at least 'safe') p-value in
the case of ties??
I have browsed the R-help archives but I found nothing.
Thanks a lot in advance for any help,
Antonino Casile
2013 Feb 05
1
plot significant spearman correlation
Hello,
I calculate the correlation between two matrices cor(x,y, method="spearman")
and I am wondering if it possible to see only the significant correlations. I can do that for single OTUs with cor.test() command but I would like to have an output for whole matrix. Besides,I would like to plot the relative abundance of each OTU, against the number of significant pair-wise correlations
2005 Mar 17
1
exact p-value for Spearman, with ties
Dear R,
I'm looking for exact p-values for Spearman's rank correlation in the
presence of ties. This is available in StatXact and SPSS, but I
haven't yet found it in R. Has anyone implemented this?
--
Paul H Artes
Assist Prof, Ophth Vis Sci
Dalhousie University, QEII Eye Care Centre
Halifax, NS, CANADA