Displaying 20 results from an estimated 700 matches similar to: "Reclassifying values within a vector to several other values"
2006 Sep 29
1
Helmert contrasts for repeated measures and split-plot expts
Dear R-help
I have two separate experiments, one a repeated-measures design, the other
a split-plot. In a standard ANOVA I have usually undertaken a
multiple-comparison test on a significant factor with e.g TukeyHSD, but as
I understand it such a test is inappropriate for repeated measures or
split-plot designs.
Is it therefore sensible to use Helmert contrasts for either of these
designs?
2003 Nov 27
1
lagsarlm - using mixed explanatory variables (spdep package)
Hello
I'm very new to R (which is excellent), so apologies if this has already
been raised. In the spdep package, I'm trying to undertake an
autoregressive mixed model using the lagsarlm function. This is working
fine, but there does not appear to be a method of including an explanatory
variable without it automatically being included as a lagged term. I'm
after something along the
2004 Apr 06
1
Storing p-values from a glm
Hi,
for example one could do it this way:
v <- summary(fit)$coefficients[,4]
the coefficient attribute is a matrix, and with the "4" you refere to the
pvalue (at least in lm - don't know if summary(glm) produces sligthely
different output).
to skip the intercept (1st row): v <- summary(glmfit)$coefficients[-1,4]
hope this helps,
Arne
--
Arne Muller, Ph.D.
2011 Feb 16
1
read.table - reading text variables as text
Hi
I'm reading a CSV file using read.table, and it keeps importing a text
variable as a factor. To overcome this, I've used the as.is command
referring to the variable in question (called "stim")
data<-read.table(file.choose(), header=T, sep=",", as.is = "stim")
However, "stim" is still imported as a factor. I notice there are other
read.table
2005 Mar 03
3
Need suggestions for plotting 3D plot
Hi Everybody,
I am a newbie in R. I have a data in the form of a
matrix which I want to make some 3D plots using R.
There is some functions for instance hist() for 2D
plots, but I cant find any function for 3D plots. Is
there any function available in R for 3D plots? If so,
is there any documention available on internet so that
I can go through.
With regards,
Soumyadeep
2007 Nov 26
1
Unweighted meta-analysis
Hello
I'm very much a beginner on meta-analysis, so apologies if this is a
trivial posting. I've been sent a set data from separate experimental
studies, Treatment and Control, but no measure of the variance of effect
sizes, numbers of replicates etc. Instead, for each study, all I have
is the mean value for the treatment and control (but not the SD). As
far as I can tell, this forces
2009 May 15
1
Plotting question re. cuminc
Hello everyone,
(This is my second question posted today on the R list).
I am carrying out a competing risks analysis using the cuminc function...this takes the form:
cuminc(ftime,fstatus,group)
In my study, fstatus has 3 different causes of failure (1,2,3) there are also censored cases (0). "group" has two levels (0 and 1).
I therefore have 6 different cumulative incidence curves:
2005 Mar 21
2
Violin plot for discrete variables.
Dear Rgurus,
To my knowledge the best way to visualize the distribution of a discrete
variable X is
plot(table(X))
The problem which I have is the following. I have to discrete variables
X and Y which distribution I would like to compare. To overlay the
distribution of Y with lines(table(Y)) gives not satisfying results.
This is the same in case of using density or histogram.
Hence, I am
2005 Mar 09
3
Plotting several series on one set of axes
Dear All,
I am rather rusty with my R, but I recall being able to do something like
plot(x1,...);plot(x2,add=TRUE,...)
to plot two series on the same axes.
Any suggestions how this may be done will be appreciated.
2009 Nov 15
1
Problem building package for R 2.10.0 on Mac OS X
Hi
I have submitted a package (rioja) to CRAN. It checks OK for all R versions and OS's except r-release-macosx-ix86 where it fails when checking the examples. Specifically, it fails because R can't find the package vegan which is needed in a function. Here is the snippet from the check results:
### Begin snippet
checking examples ... ERROR
Running examples in 'rioja-Ex.R'
2012 Mar 24
1
Double And average a vector
Dear all,
I am reading with R some measurements vectors from an external device.
The length of each vector (containing numbers) is not constant.
I would like by doubling the numbers of elements I select to shrink the vector to a new one
Let's call the vector I read from the device as oldvector
and the shrinked version of it as newVersion
I want to have
newVersion[1]<-
2010 Jun 06
4
OT: SysAdmin Stories
Hello,
I'm compiling a collection of stories from the systems administrator
trenches. They can be short or long, funny or about a particularly
challenging problem or period, or even something that appeared very
technically challenging and ended up being something very simple. Stories
which are more political would be ok so long as they do not have an agenda
or can be interpreted as a
2011 Oct 05
4
SPlus to R
I'm trying to convert an S-Plus program to R. Since I'm a SAS programmer I'm not facile is either S-Plus or R, so I need some help. All I did was convert the underscores in S-Plus to the assignment operator <-. Here are the first few lines of the S-Plus file:
sshc _ function(rc, nc, d, method, alpha=0.05, power=0.8,
tol=0.01, tol1=.0001, tol2=.005, cc=c(.1,2),
2008 Jan 29
5
pivot table in R
Hello,
I'm struggling with an elementary problem with R. I have a simple data
frame such as this one giving the number of accidents subdivided by sex,
age and region.
sex age region no_of_accidents
F young north 10
F young south 12
F old north 5
F old south 7
M young north 24
M
2020 Feb 03
6
Balloon pressuring page cache
On 03.02.20 17:18, Alexander Duyck wrote:
> On Mon, 2020-02-03 at 08:11 -0500, Michael S. Tsirkin wrote:
>> On Thu, Jan 30, 2020 at 11:59:46AM -0800, Tyler Sanderson wrote:
>>>
>>> On Thu, Jan 30, 2020 at 7:31 AM Wang, Wei W <wei.w.wang at intel.com> wrote:
>>>
>>> On Thursday, January 30, 2020 11:03 PM, David Hildenbrand wrote:
>>>
2020 Feb 03
6
Balloon pressuring page cache
On 03.02.20 17:18, Alexander Duyck wrote:
> On Mon, 2020-02-03 at 08:11 -0500, Michael S. Tsirkin wrote:
>> On Thu, Jan 30, 2020 at 11:59:46AM -0800, Tyler Sanderson wrote:
>>>
>>> On Thu, Jan 30, 2020 at 7:31 AM Wang, Wei W <wei.w.wang at intel.com> wrote:
>>>
>>> On Thursday, January 30, 2020 11:03 PM, David Hildenbrand wrote:
>>>
2005 Jan 28
4
extracting from a data.frame
Hi,
I am sorry for this simple question, but... How do I extract something
from a data.frame?
The following is my Problem:
I have got a dataframe "a" with various columns. One of those columns
is called V3 and contains elements of the following levels:
> levels(a$V3)
[1] "C" "CA" "CB" "CD" "CD1" "CD2"
2015 Jan 04
3
dmarc_moderaction_action
( previous thread at http://www.syslinux.org/archives/2015-January/023050.html )
>
> <info from="web interface mailman" extra_from="backend mailinglist software">
> dmarc_moderation_action Option
> dmarc_moderation_action (privacy): Action to take when anyone posts
> to the list from a domain with a DMARC Reject/Quarantine Policy.
>
>
2019 Apr 09
2
sieve match ANY header
On Mon, 8 Apr 2019, @lbutlr wrote:
> Really? Where outside the Received headers do IPs appear in your email headers?
Well, let's see. Running a rough grep on 270-message spam folder
# grep -E '^[-A-Za-z0-9]+:.*[^.0-9]{0,1}[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' ~/mail/FN | sort -u -k1,1 -t:
Authentication-Results: spf=fail (sender IP is 52.233.28.167)
List-Help:
2020 Feb 05
2
Balloon pressuring page cache
> On Feb 3, 2020, at 2:50 PM, Nadav Amit <namit at vmware.com> wrote:
>
>> On Feb 3, 2020, at 8:34 AM, David Hildenbrand <david at redhat.com> wrote:
>>
>> On 03.02.20 17:18, Alexander Duyck wrote:
>>> On Mon, 2020-02-03 at 08:11 -0500, Michael S. Tsirkin wrote:
>>>> On Thu, Jan 30, 2020 at 11:59:46AM -0800, Tyler Sanderson wrote: