Displaying 20 results from an estimated 500 matches similar to: "Plot of Fine and Gray model"
2008 Aug 22
0
Re : Help on competing risk package cmprsk with time dependent covariate
Hello again,
I m trying to use timereg package as you suggested (R2.7.1 on XP Pro).
here is my script based on the example from timereg for a fine & gray model in which
relt = time to event, rels = status 0/1/2 2=competing, 1=event of interest, 0=censored
random = covariate I want to test
library(timereg)
rel<-read.csv("relapse2.csv", header = TRUE, sep = ",",
2008 Aug 22
1
Help on competing risk package cmprsk with time dependent covariate
Dear R users,
I d like to assess the effect of "treatment" covariate on a disease relapse risk with the package cmprsk.
However, the effect of this covariate on survival is time-dependent
(assessed with cox.zph): no significant effect during the first year of follow-up,
then after 1 year a favorable effect is observed on survival (step
function might be the correct way to say that ?).
2008 Aug 20
0
cmprsk and a time dependent covariate in the model
Dear R users,
I d like to assess the effect of "treatment" covariate on a disease relapse risk with the package cmprsk.
However, the effect of this covariate on survival is time-dependent
(assessed with cox.zph): no significant effect during the first year of follow-up,
then after 1 year a favorable effect is observed on survival (step
function might be the correct way to say that
2009 Jun 25
2
crr - computationally singular
Dear R-help,
I'm very sorry to ask 2 questions in a week. I am using the package
'crr' and it does exactly what I need it to when I use the dataset a.
However, when I use dataset b I get the following error message:
Error in drop(.Call("La_dgesv", a, as.matrix(b), tol, PACKAGE = "base")) :
system is computationally singular: reciprocal condition number =
2009 Jun 23
0
Fractional Polynomials in Competing Risks setting
Dear All,
I have analysed time to event data for continuous variables by
considering the multivariable fractional polynomial (MFP) model and
comparing this to the untransformed and log transformed model to
determine which transformation, if any, is best. This was possible as
the Cox model was the underlying model. However, I am now at the
situation where the assumption that the competing risks
2013 Oct 18
1
crr question in library(cmprsk)
Hi all
I do not understand why I am getting the following error message. Can
anybody help me with this? Thanks in advance.
install.packages("cmprsk")
library(cmprsk)
result1 <-crr(ftime, fstatus, cov1, failcode=1, cencode=0 )
one.pout1 = predict(result1,cov1,X=cbind(1,one.z1,one.z2))
predict.crr(result1,cov1,X=cbind(1,one.z1,one.z2))
Error: could not find function
2015 May 16
1
That 'make check-all' problem with the survival package
'make check-all' for current R has been showing this error in the middle
for a few months now - any thought on fixing this? I think cmprsk
should be either included in the recommended bundle, or
the survival vignette to not depend on it. Having 'make check-all' showing
glaring ERROR's for a few months seems to defeat the purpose of
doing any checking at all via 'make
2006 May 10
0
using crr in cmprsk
Hi,
I need to fit model using crr, however my covariate is
categorical with 3 levels. I use
crr(time,status,agesplit,failcode=1,cencode=0) where
agesplit is defined as <20,21-29,>30 years, so it
takes 0, 1 or 2 for each patient. I hoped to get
estimated coefficients for the levels 1 and 2 w.r.t
level 0 as in coxph. But, I didn't. Could someone
please help me to use crr in this
2015 May 16
2
That 'make check-all' problem with the survival package
------------------------------
On Sat, May 16, 2015 8:04 AM BST Uwe Ligges wrote:
>Not sure why this goes to R-devel. You just could have asked the
>maintainer. Terry Therneau is aware of it and promised he will fix it.
>
The quickest fix is to add cmprsk to the recommended list , and that's is an R-devel issue.
>On 16.05.2015 07:22, Hin-Tak Leung wrote:
>> 'make
2015 May 17
0
That 'make check-all' problem with the survival package
------------------------------
On Sat, May 16, 2015 2:33 PM BST Marc Schwartz wrote:
>
>> On May 16, 2015, at 6:11 AM, Hin-Tak Leung <htl10 at users.sourceforge.net> wrote:
>>
>>
>>
>> ------------------------------
>> On Sat, May 16, 2015 8:04 AM BST Uwe Ligges wrote:
>>
>> Not sure why this goes to R-devel. You just could have asked
2009 Sep 07
1
Omnibus test for main effects in the face of an interaction containing the main effects.
R 2.9.1
Windows XP
I am fitting a random effects ANOVA with two factors Group which has two levels and Time which has three levels:
fita<-lme(Post~Time+factor(Group)+factor(Group)*Time, random=~1|SS,data=blah$alldata)
I want to get the omnibus significance tests for each factor and the interaction. I believe I can get the omnibus test for the interaction by running the model:
2013 Jun 03
0
[LLVMdev] Rematerialization and spilling
On Jun 3, 2013, at 6:05 AM, Steve Montgomery <stephen.montgomery3 at btinternet.com> wrote:
> I'm working on an out-of-tree target and am having some problems with rematerialization and spilling.
>
> The target's load and store instructions affect the condition code register (CCR). Describing this in the InstrInfo.td file using Defs = [CCR] certainly prevents spills and
2013 Jun 03
2
[LLVMdev] Rematerialization and spilling
I'm working on an out-of-tree target and am having some problems with rematerialization and spilling.
The target's load and store instructions affect the condition code register (CCR). Describing this in the InstrInfo.td file using Defs = [CCR] certainly prevents spills and fills from being inserted where they might clobber CCR but it also prevents the load instruction from being
2013 Jun 03
4
[LLVMdev] Rematerialization and spilling
Hi Jakob,
thanks for the advice. I'll do as you suggest and make sure that CCR is never live.
I can use pseudo-instructions to bundle cmp+jump but it's not ideal because I might also have to bundle cmp+jump+jump+... into a pseudo. Also, there are several flavours of cmp instruction so I might need a lot of pseudos.
That's what led me to wonder whether MachineInstrBundles might be a
2011 Nov 17
0
[LLVMdev] Bug 1388
Ok,
Scratching the surface this morning on Bug 1388. Happy to find that CCR has already been defined in ARMRegisterInfo.td
However all uses in the instruction info tablegen files indicate that a two-value operand can't be used where a dag node expects two operands.
// FIXME: should be able to write a pattern for ARMBrcond, but can't use
// a two-value operand where a dag node
2018 Feb 16
0
Competing risks - calibration curve
Hi,
Sorry not to provide R-code in my previous mail. R code is below
#install.packages("rms")
require(rms)
#install.packages("mstate")
library(mstate)
require(splines)
library(ggplot2)
library(survival)
library(splines)
#install.packages("survsim")
require(survsim)
set.seed(10)
df<-crisk.sim(n=500, foltime=10, dist.ev=rep("lnorm",2),
2008 Mar 27
0
competing risks regression
Dear R users,
I used crr function in R package 'cmprsk' to fit a competing risks
model. There were no any error or
warning messages during running the function, but the output was obvious
not correct.
I saved the model fit as an object called f.crr. I extracted bfitj from
the object by doing f.crr$bfitj, and found
values of bfitj were extremely large (around 1e+138). I tried all
2009 Aug 02
1
Competing Risks Regression with qualitative predictor with more than 2 categories
Hello,
I have a question regarding competing risk regression using cmprsk package (function crr()). I am using R2.9.1. How can I do to assess the effect of qualitative predictor (gg) with more than two categories (a,b,c) categorie c is the reference category. See above results, gg is considered like a ordered predictor !
Thank you for your help
Jan
> # simulated data to test
> set.seed(10)
2008 Mar 31
1
unexpected GAM result - at least for me!
Hi
I am afraid i am not understanding something very fundamental.... and does not matter how much i am looking into the book "Generalized Additive Models" of S. Wood i still don't understand my result.
I am trying to model presence / absence (presence = 1, absence = 0) of a species using some lidar metrics (i have 4 of these). I am using different models and such .... and when i
2011 Jul 20
0
Competing risk regression with CRR slow on large datasets?
Hi,
I posted this question on stats.stackexchange.com 3 days ago but the
answer didn't really address my question concerning the speed in
competing risk regression. I hope you don't mind me asking it in this
forum:
I?m doing a registry based study with almost 200 000 observations and
I want to perform a competing risk analysis. My problem is that the
crr() in the cmprsk package is