We answered this on StackOverflow already. Excel was doing case-insensitive duplicate matching.
http://stackoverflow.com/questions/20759346/counting-unique-values-in-r-and-excel/20759523#20759523 Barry On Tue, Dec 24, 2013 at 5:43 PM, David Winsemius <dwinsem...@comcast.net> wrote: > > On Dec 24, 2013, at 1:08 AM, Koushik Saha wrote: > >> i have a wired problem. i want to count the unique entry in a certain >> column.Here i have attached my csv file. > > Files named with extension .csv do not typically make it through the R-help > mail server. > >> >> i am doing this to get the unique entries in the column. >> >> dat<-read.csv("C:/Project/Gawk-scripts/Book1.csv") >> names(dat)<-c("user_name") >> unique(dat$user_name) >> >> results says i have 170 unique values. >> >> >> But i am doing "remove duplicate entries" in excel i am having 147 unique >> entries in the column. >> >> Can anyone explain why there is a mismatch of the results or i am doing >> something wrong. >> > > Rename the file to have an extension of .txt. Then you mail-client will > probably label it correctly as a MIME-TEXT file. > > -- > David Winsemius > Alameda, CA, USA > > ______________________________________________ > 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.
