Dear all, Are there functions or packages in R that can handle interval-censored data? I have looked in various packages (such as survival5 or event), but it seems that only right-censored data can be analysed. More generally, are there methods to analyse both interval-censored observations and right-censored observations in the same data set? Thanks in advance. Emmanuel Paradis -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
> > Dear all, > > Are there functions or packages in R that can handle interval-censored > data? I have looked in various packages (such as survival5 or event), but > it seems that only right-censored data can be analysed. > > More generally, are there methods to analyse both interval-censored > observations and right-censored observations in the same data set? >If you want parametric models, the gnlr and gnlr3 functions in my gnlm library will do all this: www.luc.ac.e/~jlindsey/rcode.html Jim> Thanks in advance. > > Emmanuel Paradis > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- > r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html > Send "info", "help", or "[un]subscribe" > (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ >-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
>>>>> "EP" == Emmanuel Paradis <paradis at isem.univ-montp2.fr> writes:EP> Dear all, Are there functions or packages in R that can handle EP> interval-censored data? I have looked in various packages EP> (such as survival5 or event), but it seems that only EP> right-censored data can be analysed. What do you want to do? 1-sample? regression models? hypothesis testing? This isn't clear. Also, what assumptions are you referring to? Continuous examination process, or discrete examination process? There aren't clear choices for fitting -- for the semiparametric regression models, the properties of the many approaches for variance estimation for regression parameters aren't well understood. For parameteric models, Jim gave the answer and has a paper detailing the characteristics of the approaches (Jim - did you ever publish this?) EP> More generally, are there methods to analyse both EP> interval-censored observations and right-censored observations EP> in the same data set? All right censored observations are inherently interval censored, take the interval (C,\infty). best, -tony -- A.J. Rossini Rsrch. Asst. Prof. of Biostatistics BlindGlobe Networks (home/default) rossini at blindglobe.net UW Biostat/Center for AIDS Research rossini at u.washington.edu FHCRC/SCHARP/HIV Vaccine Trials Net rossini at scharp.org FHCRC: M/Tu: 206-667-7025 (fax=4812) | Voicemail is pretty sketchy CFAR: W/F: 206-731-3647 (fax=3694) | Email is far better than phone UW: Th/F: 206-543-1044 (fax=3286) | Change last 4 digits of phone for fax -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
On Tue, 19 Sep 2000, Emmanuel Paradis wrote:> Dear all, > > Are there functions or packages in R that can handle interval-censored > data? I have looked in various packages (such as survival5 or event), but > it seems that only right-censored data can be analysed.survival5 can fit parametric models to interval-censored data, but not semiparametric models. There is also an example in survival5/Examples/test/doturnbull.s of a function to estimate the survival function for interval censored data. Not much else. -thomas Thomas Lumley Assistant Professor, Biostatistics University of Washington, Seattle -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
On Tue, Sep 19, 2000 at 03:14:04PM +0200, Emmanuel Paradis wrote:> Dear all, > > Are there functions or packages in R that can handle interval-censored > data? I have looked in various packages (such as survival5 or event), but > it seems that only right-censored data can be analysed. > > More generally, are there methods to analyse both interval-censored > observations and right-censored observations in the same data set? > > Thanks in advance. > > Emmanuel ParadisI have a reasonably large set of methods for finding the NPMLE for any type of censored data in up to 2 dimensions. Higher dimensions will require some programming and they software isn't nicely packaged yet. robert> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- > r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html > Send "info", "help", or "[un]subscribe" > (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._-- +-------------------------------------------------------------------------+ | Robert Gentleman phone : (64-9) 3737-599 ext 3946 | | Senior Lecturer fax : (64-9) 3737-018 | | Department of Statistics office : Room 206 Maths/Physics | | University of Auckland email : rgentlem at stat.auckland.ac.nz | +-------------------------------------------------------------------------+ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._