Hello, I'm using range do define boundaries for a linear model, so the line I graph is only graphed for the range of data. There are NAs in the data, but I dont remember this being a problem before. I typed na.action=na.omit anyway, which has usually solved any NA issues in the past. Any idea why R cant do vector functions for these data? Solution?
Thanks, Colin Wahl M.S. Biology candidate Western Washington University fit<-lm(sandcomb ~ CCEC25) z<-predict(fit, data.frame(CCEC25=range(CCEC25))) lines(range(CCEC25), z, lty=2, lwd=0.75, col="grey51") > is.vector(CCEC25) [1] TRUE > is.numeric(CCEC25) [1] TRUE > range(CCEC25) [1] NA NA > CCEC25 [1] 375.8 8769.0 NA 4197.0 NA 36880.0 4167.0 13100.0 3694.0 [10] 51420.0 30660.0 30850.0 4076.0 NA 59450.0 16050.0 NA 65480.0 [19] 2101.0 16390.0 5968.0 11330.0 9112.0 8326.0 > sessionInfo() R version 2.14.1 (2011-12-22) Platform: i386-apple-darwin9.8.0/i386 (32-bit) locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] grid_2.14.1 lattice_0.20-0 lme4_0.999375-42 Matrix_1.0-2 [5] nlme_3.1-102 stats4_2.14.1 tools_2.14.1 ______________________________________________ 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.
