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...vidual. I am new to R and could not modify the R code easily. Any suggestion? Has anyone done internal validation and calibration after using weighted coxph approach? Can you kindly refer me to the reference which has R code? Thank you very much for all your inputs and suggestions Regards Amalraj raja -----Original Message----- From: Ronald Geskus [mailto:statistics at inter.nl.net] Sent: 21 March 2018 04:01 To: r-help at r-project.org Cc: Raja, Dr. Edwin Amalraj <amalraj.raja at abdn.ac.uk> Subject: Re: [R] selectFGR - variable selection in fine gray model for competing risks Dear...

On Thu, Mar 22, 2018 at 4:52 AM, Raja, Dr. Edwin Amalraj <amalraj.raja at abdn.ac.uk> wrote: > Hi , > > library(foreign) > write.dta(data1, "data1.dta") > > should work. I don't think so: > library(foreign) > example(svydesign) > write.dta(dstrat, "~/Downloads/foo.dta") Error in write.dta(dstra...

...effect of Age using restricted cubic form in the FGR function as Fgr.crr <- FGR(Hist(time, event) ~ rcs(Age_years), data=dat) It provides error. " Error in parse(text = termtext, keep.source = FALSE): .... 1: response ~ rcs(Age_years Do I need to change any of the R code? Regards Amalraj Raja The University of Aberdeen is a charity registered in Scotland, No SC013683. Tha Oilthigh Obar Dheathain na charthannas cl?raichte ann an Alba, ?ir. SC013683. [[alternative HTML version deleted]]

...hick <- log(Melanoma$thick) f1 <- Hist(time,status)~age+sex+epicel+ulcer df1 <-FGR(f1,cause=1, data=Melanoma) df1 df <-selectFGR(f1, data=Melanoma, rule ="BIC", direction="backward") Thanks in advice for your suggestion. Is there any alternative solution ? Regards Amalraj raja The University of Aberdeen is a charity registered in Scotland, No SC013683. Tha Oilthigh Obar Dheathain na charthannas cl?raichte ann an Alba, ?ir. SC013683.

Hi , library(foreign) write.dta(data1, "data1.dta") should work. The file will be saved in the working directory. Use getwd() to know the working directory. Best wishes Amalraj Raja -----Original Message----- From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of rosario scandurra Sent: 22 March 2018 07:47 To: r-help at r-project.org Subject: [R] exporting data to stata Hi, I am new to R and I want to export data into Stata. Could somebody help with that? T...

Hi, I am new to R and I want to export data into Stata. Could somebody help with that? Thanks a lot. This is the code I am using: > setwd("D:/datasets/Seg-bcn/ESBD") > data1 <- readRDS("r17045_ESDB_Habitatges_BDD_V_1_0.rds") > library(foreign) > write.dta(data="data1", file = "D:/datasets/data1.dta") Error in write.dta(data =

...-state models and competing risks" in the survival package. best regards, Ronald Geskus, PhD head of biostatistics group Oxford University Clinical Research unit Ho Chi Minh city, Vietnam associate professor University of Oxford http://www.oucru.org/dr-ronald-b-geskus/ "Raja, Dr. Edwin Amalraj" <amalraj.raja at abdn.ac.uk> writes: > Dear All, > > I would like to use R function 'selectFGR' of fine gray model in > competing risks model. I used the 'Melanoma' data in 'riskRegression' > package. Some of the variables are factor. I get...

...erved-predicted", tol=1e-12, maxdim=5) plot(cal, subtitles=FALSE) plot(cal) cal.km <- calibrate(mod, u=1, cmethod='KM', m=10, B=10, pr=FALSE) plot(cal.km) cal.hare = calibrate(mod, u=1, cmethod='hare', m=20, B=20) plot(cal.hare) ##################################### Regards Amalraj From: Raja, Dr. Edwin Amalraj Sent: 16 February 2018 10:37 To: 'r-help at r-project.org' <r-help at r-project.org> Subject: Competing risks - calibration curve Dear R users, I am new to R and wanted to apply competing risk methods in my research work. I used the R code given by...

...9;Nomogram for survival analysis in the presence of competing risks published in Ann Trans Med 2017:5(20):403. I am struggling with getting calibration curve thro' internal validation. I am happy to receive suggestion in the coding as well as any reference Can someone help with it? Regards Amalraj Raja University of Aberdeen The University of Aberdeen is a charity registered in Scotland, No SC013683. Tha Oilthigh Obar Dheathain na charthannas cl?raichte ann an Alba, ?ir. SC013683.