Yup, thats the culprit. Thx. //M
On 28. apr. 2011, at 18.36, Achim Zeileis wrote: > On Thu, 28 Apr 2011, moleps wrote: > >> sessionInfo yields the following: > > OK, the "Design" package causes the problem here. When you load the Design > package, it provides a new Surv() and related methods. This clashes with the > computations of ctree() based on Surv(). So it's better not to load both > packages simultaneously... > Z > >>> sessionInfo() >> R version 2.11.1 (2010-05-31) >> x86_64-apple-darwin9.8.0 >> >> locale: >> [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 >> >> attached base packages: >> [1] stats4 tcltk splines grid stats graphics grDevices >> utils datasets methods base >> >> other attached packages: >> [1] ipred_0.8-8 class_7.3-3 mlbench_2.1-0 rpart_3.1-46 >> party_0.9-99991 vcd_1.2-9 colorspace_1.0-1 >> strucchange_1.4-3 coin_1.0-18 mvtnorm_0.9-95 >> [11] modeltools_0.2-17 Design_2.3-0 car_2.0-8 nnet_7.3-1 >> sandwich_2.2-6 boot_1.2-43 Amelia_1.2-18 lmtest_0.9-27 >> zoo_1.6-4 MASS_7.3-7 >> [21] mgcv_1.7-2 cem_1.0.142 randomForest_4.6-2 >> lattice_0.19-17 nlme_3.1-97 rgl_0.92.798 Hmisc_3.8-3 >> survival_2.36-2 ggplot2_0.8.9 proto_0.3-8 >> [31] reshape_0.8.3 plyr_1.4 foreign_0.8-41 >> >> loaded via a namespace (and not attached): >> [1] cluster_1.13.2 digest_0.4.2 Matrix_0.999375-46 tools_2.11.1 >> >> >> As i described in the original post I ran >> >>> example(ctree) >> >> and the following part yields an error: >> >> >> if (require("ipred")) { >> data("GBSG2", package = "ipred") >> GBSG2ct <- ctree(Surv(time, cens) ~ .,data = GBSG2) >> plot(GBSG2ct) >> treeresponse(GBSG2ct, newdata = GBSG2[1:2,]) >> } >> >> Error in Summary.Surv(c(1814, 2018, 712, 1807, 772, 448, 2172, 2161, 471, : >> Invalid operation on a survival time >> >> >> //M >> >> >> >> >> >> On 28. apr. 2011, at 14.19, Jonathan Daily wrote: >> >>> It would help people who know more about R's guts than me if you >>> posted your sessionInfo() output and exactly what commands produced >>> your error. >>> >>> It is also recommended that you try simply upgrading R to the latest >>> version and see if you get an error with the latest version of >>> 'party'. My guess is that the error will go away. >>> >>> On Wed, Apr 27, 2011 at 3:40 PM, moleps <mole...@gmail.com> wrote: >>>> Forgot to mention that the ctree command is from the party library. >>>> //M >>>> >>>> ______________________________________________ >>>> R-help@r-project.org mailing list >>>> https://stat.ethz.ch/mailman/listinfo/r-help >>>> PLEASE do read the posting guide >>>> http://www.R-project.org/posting-guide.html >>>> and provide commented, minimal, self-contained, reproducible code. >>>> >>> >>> >>> >>> -- >>> =============================================== >>> Jon Daily >>> Technician >>> =============================================== >>> #!/usr/bin/env outside >>> # It's great, trust me. >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.