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 ______________________________________________ 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.
