Thank you. That's easier than I thought. On Wed, Jan 11, 2012 at 12:06 AM, Jorge I Velez <jorgeivanve...@gmail.com> wrote: > Hi Robert, > > Try > > set.seed(123) > x <- seq(100) > x <- sample(x, 1000, replace = TRUE) > f <- ecdf(x) > f(10) > # [1] 0.099 > f(71) > # [1] 0.716 > > See ?ecdf for more information. > > HTH, > Jorge.- > > > On Tue, Jan 10, 2012 at 11:52 PM, Robert A'gata <> wrote: >> >> Hello, >> >> I am not sure how to do this in R. Any suggestion would be >> appreciated. I have a vector of values from where I build an empirical >> CDF. For example: >> >> > x <- seq(1,100) >> > x <- sample(x,1000,replace=T) >> > quantile(x,probs=seq(0,1,.05)) >> 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% >> 50% 55% >> 1.00 5.00 10.00 16.00 20.00 25.00 31.00 36.00 41.00 45.55 >> 50.00 56.00 >> 60% 65% 70% 75% 80% 85% 90% 95% 100% >> 60.00 65.00 70.00 74.00 80.00 85.00 91.00 95.05 100.00 >> >> I would like to write a function that takes in a number z and vector x >> (i.e. the raw vector).It returns percentile of z wrt x. E.g. >> >> > f(71,x) >> >> Should return something around 0.708 or 0.709. I am wondering if there >> is any pre-packaged functions that do this in R? If not, how can I >> write such a function. Any suggestion would be appreciated. >> >> Robert >> >> ______________________________________________ >> 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. > >
______________________________________________ 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.
