Hi everyone, I've been bashing my head against this for days now, and can't figure out what to do.
I have the following dataframe header appetitive stimulus aversive stimulus chaining contingency discriminative stimulus extinction intermittent reinforcement negative reinforcer operant response place learning positive reinforcer punishment reinforcement schedules response rate secondary reinforcement spontaneous recovery variance spontaneous recovery -3 -2 0 -3 -3 -16 -5 1 16 -1 7 1 -1 11 -2 0 49.73 negative reinforcer -1 -15 4 -1 8 2 -1 0 -5 2 -6 14 -1 -2 2 0 38.80 appetitive stimulus 0 2 -1 2 1 1 0 -2 -6 4 -14 0 4 9 -1 1 24.13 aversive stimulus -4 0 0 2 9 1 1 -12 0 3 2 -7 0 2 2 1 21.20 discriminative stimulus -3 5 0 1 0 1 -1 7 -8 -3 -2 10 2 -3 -6 0 20.80 intermittent reinforcement 3 2 -3 0 0 -3 0 0 -7 -2 7 1 -4 -7 9 4 19.73 place learning 3 3 -2 -4 -2 -2 2 -2 -4 0 7 -3 11 -6 -1 0 19.07 extinction 4 5 5 0 2 0 -3 0 -1 3 0 3 -4 -2 -1 -11 16.00 chaining -1 -4 0 -3 0 0 3 7 -1 -6 -1 9 -5 0 1 1 15.33 positive reinforcer -11 -4 1 0 -1 -1 1 -2 -1 5 0 1 3 4 0 5 14.80 response rate 4 6 0 -2 -1 -2 -4 -1 2 1 0 -2 -7 0 -2 8 13.60 punishment 0 -7 6 0 -3 -1 3 7 0 2 -2 0 -3 -3 1 0 12.00 operant response -1 0 0 -1 0 2 -4 -6 0 3 -5 1 -2 5 2 6 10.80 secondary reinforcement -2 -1 1 3 -5 -1 8 -1 -6 0 2 1 1 0 0 0 9.87 contingency 1 1 -6 0 -1 1 3 0 -3 5 3 -1 -4 -2 -1 4 8.67 reinforcement schedules 1 2 0 2 0 -3 -4 4 0 3 2 0 0 -5 -2 0 6.13 which is ordered according to the variance column (I manually ordered this in excel and wrote the data to file as a csv). I need to enforce this order on the levels of $header and I don't know how to do that. levels(related.differences$header) [1] "appetitive stimulus" "aversive stimulus" "chaining" "contingency" "discriminative stimulus" [6] "extinction" "intermittent reinforcement" "negative reinforcer" "operant response" "place learning" [11] "positive reinforcer" "punishment" "reinforcement schedules" "response rate" "secondary reinforcement" [16] "spontaneous recovery" I've tried levels(related.differences$header) <- as.vector(related.differences$header) levels(related.differences$header) [1] "spontaneous recovery" "negative reinforcer" "appetitive stimulus" "aversive stimulus" "discriminative stimulus" [6] "intermittent reinforcement" "place learning" "extinction" "chaining" "positive reinforcer" [11] "response rate" "punishment" "operant response" "secondary reinforcement" "contingency" [16] "reinforcement schedules" which looks right, but when I print the dataframe to screen, the order of $header is pooched, while the data is still in the correct order or if I submit the dataframe to ggplot2 via qplot(), the headers are in the correct order, but the data is in order as though the levels were alphabetical. :( qplot(appetitive.stimulus, header, data=related.differences, size=variance, colour="Appetitive Stimulus", xlim=c(-20,20), main="title", xlab="Differences", ylab="Header Concepts") At the end of the day, all I want to do is order the dataframe and headers and levels according to the variance, so that when I graph all the variables, the size of the dots either gets bigger or smaller depending on the variance as opposed to the alphabetical order which makes it appear random. If you can tell me what i'm doing wrong please let me know. many thanks, emilio [[alternative HTML version deleted]] ______________________________________________ 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.