1. You need to define more explicitly exactly what you mean by "randomly."
2. You need to make an honest effort to learn basic R, e.g. by spending time with the "Introduction to R" document that ships with R or an online tutorial (there are many good ones). Cheers, Bert On Sun, Nov 10, 2013 at 10:31 PM, dila radi <dilarad...@gmail.com> wrote: > Hi, > > Im new R users. In my research I use rainfall data and Im interested in > estimating missing data. I would like to use Normal Ratio Method to > estimate missing data. My problem is, how do I introduce missing data > randomly within my complete set of data? > > > Stn ID Year Mth Day Amount > 48603 71 1 1 1 > 48603 71 1 2 0.5 > 48603 71 1 3 1.3 > 48603 71 1 4 0.8 > 48603 71 1 5 0 > 48603 71 1 6 0 > 48603 71 1 7 0 > ... > > Thank you so much for your attention and help. > > Regards, > Dila > > [[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. -- Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 ______________________________________________ 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.
