Dear Sir/Madam,
I am encountering one of those alien computer momements one finds every so often in life. See the sequence below: > fish3.fis <-read.csv("emperor2.csv", check.names = TRUE, strip.white = TRUE) > colnames(fish3.fis) [1] "Month" "Year" "FishingArea" "SumOfTotalCatch" "CPUE" [6] "rCPUE" "PA" "Latitude" "Longitude" "Depth" [11] "SST" > hist(CPUE) Error in hist(CPUE) : Object "CPUE" not found So, the system knows CPUE exists, but will not do a hist or a gam model using the term - but for some strange reason it will do a plot. I have created a completely different data file and that same problem is happening. The imported files are exactly the same as I was using quite happily last month. As you will see from the above I've tried adding check.names and strip.white in the reading in process to avoid the unseen effect of blank spaces. Any ideas what I might do next? Have you come across this issue at all? Thanks Lubna Al-Kharusi PhD student (GIS) Department of Geography University of Leicester University Road Leicester LE1 7RH mobile # 07886990332 ______________________________________________ R-help@stat.math.ethz.ch 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.