On Oct 7, 2015, at 6:10 PM, andrew haywood wrote: > Thanks David, > > I apologies for not posting the versions. > > I am running > > R version 3.2.2 (2015-08-14) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > > locale: > [1] LC_COLLATE=English_United Kingdom.1252 > [2] LC_CTYPE=English_United Kingdom.1252 > [3] LC_MONETARY=English_United Kingdom.1252 > [4] LC_NUMERIC=C > [5] LC_TIME=English_United Kingdom.1252 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] segmented_0.5-1.2 > > And I still get the error. What is the best way to debug the error?
The first thing I do is run traceback() immediately after the error. If that fails to illuminate the problem, my next step is falling back to: options(error="browser") # which should allow you to examine the system-state at the time of the error. And at that point I start considering sending an email to the maintainer with my reproducible example, especially so since it fails with a more recent version. It may be that the maintainer has the same OS as you have. -- David. > > Kind regards teht > Andrew > > > On Thu, Oct 8, 2015 at 7:11 AM, David Winsemius <dwinsem...@comcast.net> > wrote: > > On Oct 7, 2015, at 6:50 AM, andrew haywood wrote: > > > Dear List, > > > > I am trying to run a simple pieewise regression using the segmented package. > > > > When running the following code > > > > library(segmented) > > data = data.frame(x=c(50,60,70,80,90,100,110) , y= > > c(703.786,705.857,708.153,711.056,709.257, 707.4, 705.6)) > > > > model.lm = segmented(lm(y~x,data = data),seg.Z = ~x, psi = NA, control = > > seg.control(K=1)) > > > > I get the following error. > > > > Error in if (psi == Inf) psi <- median(XREGseg) : > > missing value where TRUE/FALSE needed > > I don't get any error, despite being a bit behind the times. You need to > specify the versions (OS, R, segmented) and prepare for some debugging > efforts. Easiest way to do this is with the output of sessionInfo(). > > R version 3.2.1 (2015-06-18) -- "World-Famous Astronaut" > Copyright (C) 2015 The R Foundation for Statistical Computing > Platform: x86_64-apple-darwin10.8.0 (64-bit) > > I also have an embarrassing number of packages loaded. > > other attached packages: > [1] segmented_0.5-1.1 boot_1.3-17 sqldf_0.4-10 > > (remaining 48 are omitted) > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > 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. > > David Winsemius > Alameda, CA, USA > > David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.