Displaying 20 results from an estimated 700 matches similar to: "Random coefficients model with a covariate: coxme function"
2008 Mar 05
1
coxme - fitting random treatment effect nested within centre
Dear all,
I am using "coxme" function in Kinship library to fit random treatment effect nested within centre. I got 3 treatments (0,1,2) and 3 centres. I used following commands, but got an error.
> ugroup=paste(rep(1:3,each=3),rep(0:2,3),sep='/')
> mat1=bdsmatrix(rep(c(1,1,1,1,1,1,1,1,1),3),blocksize=rep(3,3),dimnames=list(ugroup,ugroup))
>
2010 Jul 27
0
AIC from coxme
Hi,
I am running the following model:
fit1.full <- coxme(Surv(age_sym1, sym1) ~ sex + lifedxm*sex + (1|famid),
data=bip.surv)
I would like to extract the AIC from that object to calculate the AICC.
However, when I look at str(fit1.full) and summary(fit1.full) (pasted
below) I don't see anything that would allow me to get pull the AIC out
from that object.
Is there a way to retrieve the
2012 Oct 07
1
variances of random effects in coxme
Dear R users,
I'm using the function coxme of the package coxme in order to build Cox
models with complex random effects. Unfortunately, I sometimes get
surprising estimations of the variances of the random effects.
I ran models with different fixed covariates but always with the same 3
random effects defined by the argument
varlist=coxmeMlist(list(mat1,mat2,mat3), rescale = F, pdcheck = F,
2009 Aug 13
2
CMD check error (bug?)
R version 2.9.0 running on Centos (Red Hat linux).
I have a pair of packages coxme and bdsmatrix. The latter is installed
in my local library (I don't have permission for global install at
work.) That is, it is in the location pointed to in R_LIBS_USER. In R,
the command library(bdsmatrix) works fine.
Coxme depends on bdsmatrix, in fact uses some cross-calls to it's C
routines, which
2017 Dec 29
1
winbuilder warning message wrt function pointers
And remove the cast on the return value of R_GETCCallable. And check
that your function is found before using it.
#include <R.h>
#include <Rinternals.h>
#include <R_ext/Rdynload.h>
void bdsmatrix_prod4(int nrow, int nblock, int *bsize,
double *bmat, double *rmat,
int nfrail, double *y) {
DL_FUNC fun = NULL;
if (fun==NULL)
2017 Dec 29
3
winbuilder warning message wrt function pointers
I've recently updated the coxme package, which calls internal routines from the bdsmatrix
package.? (It is in fact mentioned as an example of this in the Extensions manual.)
The call connections are a blocks like this, one for each of the 9 called C routines.
void bdsmatrix_prod4(int nrow,??? int nblock,?? int *bsize,
??????????????????? double *bmat, double *rmat,
??????????????????? int
2018 Jan 09
1
resolving a names conflict
The survival package uses a generalized cholesky decompostition throughout.? If A is a
symmetric matrix A= LDL' where L is lower triangular with 1s on the diagonal, D is
diagonal, and D[i,i] =0 if column i of A is redundant.? Being able to read the rank and
dependencies directly off of D is very handy.
The bdsmatrix package uses the same, but exposes it to the user as gchol and solve
2009 Mar 05
3
methods package
I'm working on the next version of coxme, one step of which is converting
the bdsmatrix library from Splus to R. Actually, it is a conversion from
S4 methods as first described in the Green book to S4 methods as they
currently exist. Mostly it's going ok, but not entirely.
1. The biggest issue is lack of documentation. The online help pages have
not been a help; they keep saying
2015 Feb 15
2
Imports problem
I'm testing out a new version of coxme and R CMD check fails with "could not find function
ranef" (or random.effects or fixef, or anything from nlme). The NAMESPACE file has the
line below
importFrom(nlme, ranef, random.effects, fixef, fixed.effects, VarCorr)
and nlme is declared in the DESCRIPTION file as an import. I feel that I must be staring
at some obvious (but
2009 Aug 05
1
inheriting C symbols
The package coxme depends heavily on bdsmatrix, to the point of needing
access to some of its C calls. The kinship package (in progress) uses
the R level functions in bdsmatrix, but not the C calls. That is, I
don't want to always export the symbols.
For testing I can use an explicit dyn.load('somepath/bsdmatrix.so',
local=F). How do I incorporate such a dependency in the
2017 Dec 29
0
winbuilder warning message wrt function pointers
You can legally cast a function pointer to another function pointer, where
the signatures differ. (It is not legal to cast between data and function
pointers.)
I would make typedefs for the various signatures, as the casting syntax is
more
readable then.
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Fri, Dec 29, 2017 at 10:13 AM, Therneau, Terry M., Ph.D. <
therneau at mayo.edu> wrote:
2013 Jul 05
1
multcomp on significant interaction in coxme model
Dear R community
I currently try to get post hoc multiple comparisons with the package
multcomp from a cox mixed-effects model, where the survival is explained
by two variables (cover with levels: nocover and cover; treatment with
levels: tx, uv, meta), whose interaction is significant.
I read Hothorn, T. 2011: Additional multcomp Examples and there is an
example involving a two-way ANOVA with
2011 Oct 06
1
multiple defines of diag
The current coxme code has functions that depend on bdsmatrix and others
that depend on Matrix, both those pacakges define S4 methods for diag.
When loaded, the message appears:
replacing previous import ?diag? when loading ?Matrix?
Questions:
1. Do I need to worry about this? If so, what can I do about it?
I suppose I could add an importFrom directive, but it will be a pain
unless there
2015 Feb 16
0
Imports problem
>>>>> Therneau, Terry M , Ph D <therneau at mayo.edu>
>>>>> on Sun, 15 Feb 2015 17:31:00 -0600 writes:
> I'm testing out a new version of coxme and R CMD check fails with "could not find function
> ranef" (or random.effects or fixef, or anything from nlme). The NAMESPACE file has the
> line below
>
2020 Jan 13
0
as-cran issue
On 13/01/2020 11:02 a.m., Therneau, Terry M., Ph.D. via R-devel wrote:
> Where can I find out (and replicate) what options as-cran turns on?
>
> The issue: the following lines generate an error in R CMD check --as-cran? for coxme.? But
> there is no error without as-cran nor is there one when I run the code in a terminal window.
>
> ismat <- function(x)? inherits(x,
2017 Dec 29
0
winbuilder warning message wrt function pointers
Try changing
static void (*fun)() = NULL;
to
DL_FUNC fun = NULL;
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Fri, Dec 29, 2017 at 5:14 AM, Therneau, Terry M., Ph.D. <
therneau at mayo.edu> wrote:
> I've recently updated the coxme package, which calls internal routines
> from the bdsmatrix package. (It is in fact mentioned as an example of this
> in the Extensions
2009 Aug 13
0
Need Advice: Considering Converting a Package from S3 to S4 -- reprise
I read the list in digest form which sometimes makes me late to respond.
Peter Dalgaard wrote:
In all fairness, it should probably be noted that quite a few people
swear BY S4 in addition to those who swear AT it.
Lest I give the impression of only dislike -- the coxme package (major
rewrite nearly done, I'm now testing) depends heavily on the bdsmatrix
package which implements a very
2010 Mar 05
2
Defining a method in two packages
The coxme package has a ranef() method, as does lme4. I'm having
trouble getting them to play together, as shown below. (The particular
model in the example isn't defensible, but uses a standard data set.)
The problem is that most of the time only one of lme4 or coxme will be
loaded, so each needs to define the basic ranef function as well as a
method for it. But when loaded together
2001 Sep 14
1
rowsum dimnames (PR#1092)
The result of rowsum() in R doesn't have the dimnames I'd expect, e.g.:
> rowsum(matrix(1:12, 3,4), c("Y","X","Y"))
[,1] [,2] [,3] [,4]
1 2 5 8 11
2 4 10 16 22
whereas S-Plus gives the more useful result:
[,1] [,2] [,3] [,4]
X 2 5 8 11
Y 4 10 16 22
This is because R's rowsum() code gives the
2009 Mar 05
3
Package issue
I've converted the bdsmatrix package (used by coxme) to the newer style of
S4, and uploaded it. It is in the pkg directory of survival, on r-forge.
I'm stuck on something that is almost certainly a namespace issue. I've
borrowed liberally from Matrix (a big help) and read the documentation, and
just upgraded to 2.8.1 - but still stuck.
All the tests work when I run them "by