Displaying 18 results from an estimated 18 matches similar to: "How do I make a loop to extract a column from multiple lists and then bind them together to make a new matrix?"
2005 May 04
1
lmer error:flist must be a non-empty list
Hi,
I was wondering if anyone could give me advice regarding using the lmer
command in lme4 package to do logistic regression (mixed effects model).
I use the following command
lmer(ISH ~ArrayPathology2, random=~1|PatientID, data=HSDB4.noNA,
family="binomial")
where ISH is outcome(0 or 1), ArrayPathology2 is the variable of
interest(factor), PatientID is random effect(factor), and
2009 Sep 09
1
Package that does not work until I re write the exactly the same code
Hi the list,
I am writing a package in S4 and I do not manage to understand a bug.
The "R CMD check" and the "R CMD build" both work. Here is links to the
package (not on CRAN yet for the raison that I explain bellow):
http://christophe.genolini.free.fr/aTelecharger/kml_0.5.zip
http://christophe.genolini.free.fr/aTelecharger/kml_0.5.tar.gz
Then I install the package and I
2010 Jul 22
1
svydesign syntax
This message is for those familiar with the survey package. I need to fit a
weighted Cox model to accommodate the sampling weights as I have a
case-control study with controls sampled at random from a database in a
ratio 2:1 to cases (whom were all sampled). I want to make sure I am using
the right svydesign syntax to specify this sampling design. Can anyone
please check if the statement below is
2010 Jul 21
1
post hoc test for lme using glht ?
Hi,
I have a fairly simple repeated measures-type data set I've been attempting
to analyze using the lme function in the nlme package. Repeated searches
here and other places lead me to believe I have specified my model
correctly.
However, I am having trouble with post-hoc tests. From what I gather, other
people are successfully using the glht function from the multcomp package to
2009 Oct 19
2
how to get rid of 2 for-loops and optimize runtime
Short: get rid of the loops I use and optimize runtime
Dear all,
I want to calculate for each row the amount of the month ago. I use a matrix with 2100 rows and 22 colums (which is still a very small matrix. nrows of other matrixes can easily be more then 100000)
Table before
Year month quarter yearmonth Service ... Amount
2009 9 Q3 092009 A ...
2007 Jul 31
1
Error message when running lm() with na.action=NULL
Hi there,
I am trying to run a liner regression using lm with na.action = NULL, but I
am getting an error message. Any ideas as to why this may be happening?
Please see code and error message below:
> reg_test<-lm(yy~.,data=test,na.action=NULL)
Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) :
NA/NaN/Inf in foreign function call (arg 4)
This message and
2000 Aug 23
0
2 Bugs in na.omit.default() (PR#641)
# BUG 1: returns empty vector if no NAs present
> nona <- 1:10
> na.omit(nona)
numeric(0)
na.omit.default() has two lines where
object[-omit]
is used, where omit represents positions of NAs and thus without NAs
omit = numeric(0)
and since
-numeric(0) = numeric(0)
object[-omit] = numeric(0)
It looks like an earlier version of na.omit.default had 'omit' defined as
2008 Sep 17
3
selecting dataframe values that are not nulls
Hi,
I have a dataframe with 14319rows and 9 colums. for some rows there are null
values.I want a dataframe without these null values.I wanna select only
those that have values !=NA.
kindly let me know how to do that.
Ramya
--
View this message in context: http://www.nabble.com/selecting-dataframe-values-that-are-not-nulls-tp19537093p19537093.html
Sent from the R help mailing list archive at
2007 Jul 05
4
Load Balancing , MSN and SSL
HI All ,
I am running a FC6 box with two internet links with load balance . Every
thing is working fine expect the MSN connection that failed and reconnect
every time and SSL connections . I would link to know if with the nona
howto I could fix that .
I have been tried with no success to redirect that connection only to one
link but its look like do not work . Here my configuration :
2006 Nov 07
2
Comparing models in multiple regression and hierarchical linear regression
I don?t know if this question properly belongs on this list, but I?ll ask it here because I?ve been using R to run linear regression models, and it is only in using R (after switching from using SPSS) that I have discovered the process of fitting a linear model. However, after reading Crowley (2002), Fox (2002), Verzani (2004), Dalgaard (2002) and of course searching the R-help archives I cannot
2005 May 12
0
[LLVMdev] looking for a burg-style code generator generator
i want to extend a burg-style code generator generator to write a
retargetable compiler, implementing the algorithm:
Rainer Leupers: Code Selection for Media Processors with SIMD
Instructions. DATE 2000: 4-8
what i have now is only iburg, though robust but with very limited
functionality.
i have consider using "nova" - http://cocom.sourceforge.net/nona.html
but it seems not be
2005 Aug 15
2
randomForest Error passing string argument
I'm attempting to pass a string argument into the function
randomForest but I get an error:
state <- paste(list("fruit ~", "apples+oranges+blueberries",
"data=fruits.data, mtry=2, do.trace=100, na.action=na.omit,
keep.forest=TRUE"), sep= " ", collapse="")
model.rf <- randomForest(state)
Error in if (n==0) stop ("data(x) has 0
2004 May 25
1
cor and missing values. Bug?
There seems to be an issue in computing rank correlations with missing
values present. I think this comes from the way rank() function works but
I am not sure how to go about this. Rank function places missing values at
the end by default thus skewing the rank relationship between two vectors:
Example:
R : Copyright 2003, The R Foundation for Statistical Computing
Version 1.8.1 (2003-11-21),
2018 May 08
1
Proposed speedup of ifelse
Hugh,
(Note I speak for myself only and not for R-core) Thanks for looking into
this. I think it's great to have community members that are interested in
contributing to R and helping it continue to get better.
And I think, and my local experiments bear out, that using anyNA as a
fastpass condition does allow us to get a significant speedup over what's
in there now. To do so, though, I
2004 Mar 31
3
help with the usage of "randomForest"
Dear all,
Can anybody give me some hint on the following error msg I got with using
randomForest?
I have two-class classification problem. The data file "sample" is:
----------------------------------------------------------
udomain.edu udomain.hcs hpclass
1 1.0000 1 not
2 NA 2 not
3 NA 0.8 not
4 NA 0.2 hp
5 NA 0.9 hp
------------------------------------------------------------
The
2008 Aug 26
1
[LLVMdev] Dependence Analysis [was: Flow-Sensitive AA]
On Friday 22 August 2008 17:07, Vikram S. Adve wrote:
> On Aug 22, 2008, at 4:27 PM, David Greene wrote:
> > Exactly right. One of my first jobs here was to fix a bunch of
> > overflow
> > problems exposed by optimization. It's now become a tradition to
> > give this task to any new optimizer employee. :)
>
> But that sounds like Cray is being fairly
2018 May 03
2
Proposed speedup of ifelse
> I propose a patch to ifelse that leverages anyNA(test) to achieve an
> improvement in performance. For a test vector of length 10, the change
> nearly halves the time taken and for a test of length 1 million, there
> is a tenfold increase in speed. Even for small vectors, the
> distributions of timings between the old and the proposed ifelse do
> not intersect.
For smaller
2009 Jul 23
1
[PATCH server] changes required for fedora rawhide inclusion.
Signed-off-by: Scott Seago <sseago at redhat.com>
---
AUTHORS | 17 ++++++
README | 10 +++
conf/ovirt-agent | 12 ++++
conf/ovirt-db-omatic | 12 ++++
conf/ovirt-host-browser | 12 ++++