See ?cut for creating a factor based on ranges of values. Regards,
Wade Wall wrote: > > Hi all, > > I am trying to convert geometric means in a matrix to cover classes. My > values are as such: > > perc<-c(0,0.025136418, 0.316227766, 1.414213562,3.16227766, 7.071067812, > 15.8113883, 35.35533906, 61.23724357, 84.40971508, 97.46794345) > cover<-c(0,1,2,3,4,5,6,7,8,9,10) > > This is what I am trying to accomplish > > veg_mean[veg_mean>0 && veg_mean < .1] <- 1 > veg_mean[veg_mean>= .1 && veg_mean < 1.0] <- 2 > veg_mean[veg_mean>=1.0 && veg_mean < 2.0] <- 3 > veg_mean[veg_mean>=2.0 && veg_mean < 5.0] <- 4 > veg_mean[veg_mean>= 5.0 && veg_mean < 10.0] <- 5 > veg_mean[veg_mean>= 10.0 && veg_mean < 25] <- 6 > veg_mean[veg_mean>= 25.0 && veg_mean < 50.0] <- 7 > veg_mean[veg_mean>=50.0 && veg_mean < 75.0] <- 8 > veg_mean[veg_mean>= 75.0 && veg_mean < 95.0 ] <- 9 > veg_mean[veg_mean>= 95.0 && veg_mean <= 100] <- 10 > veg_mean[veg_mean> 100] <- NA > > where values are assigned based on the geometric means. However, I think > that my syntax for the && operator is wrong and I can't find a reference > to > proper syntax. I basically want to "bin" the geometric means. > > Any help would be greatly appreciated. > > Thanks, > > Wade > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > > -- View this message in context: http://www.nabble.com/Case-statements-in-R-tp18695725p18696107.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
