Welcome to R! You could try using findInterval() which will quickly determine into which interval your values belong.
# your break points define the intervals brks <- c( 0.2, 0.4, 0.7) # make an example data frame n <- 100 x <- data.frame( x = seq_len(n), y = runif(n, min = 0, max = 1)) # compute the interval associations and add it to the # data frame x$group <- findInterval(x$y, brks) # show the groupings plot(x$x, x$y, pch = 1 + x$group) Cheers, Ben On Fri, Jan 31, 2020 at 9:21 AM pooja sinha <pjsinh...@gmail.com> wrote: > > Hi All, > > I have a .csv file with four columns (Chrom, Start_pos, End_pos & Value). > The value column range from 0 to 1.0 having more than 2.8 million rows. I > need to write a code from which I can extract the values from 0.2-0.4 & > 0.7-1.0. Could anyone help me in writing the code because I am new to R and > it takes lot of time manually to sort based on values. > > The only part I know is I can read the .csv file and after that I don’t > know how to proceed further. > > > Thanks, > > Puja > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. -- Ben Tupper Bigelow Laboratory for Ocean Science West Boothbay Harbor, Maine http://www.bigelow.org/ https://eco.bigelow.org ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
