Works like a charm, thanks! Still don't know what that error message means though. Any idea?
2016-09-20 20:13 GMT+02:00 <ruipbarra...@sapo.pt>: > Sorry, I've made a stupid mistake. > It's obviously the other way around. > > ix <- which(rownames(data) %in% c("601", "604")) > clean <- data[-ix, ] > > > Rui Barradas > > > Citando ruipbarra...@sapo.pt: > > > Hello, >> >> Try something like the following. >> >> ix <- which(c("601", "604") %in% rownames(data)) >> clean <- data[-ix, ] >> >> >> Hope this helps, >> >> Rui Barradas >> >> >> >> >> Citando Pauline Laïlle <pauline.lai...@gmail.com>: >> >> Dear all, >>> >>> I built a dataframe with read.csv2(). Initially, row names are integers >>> (order of answers to a survey). They are listed in the csv's first >>> column. >>> The import works well and my dataframe looks like I wanted it to look. >>> >>> Row names go as follows : >>> [1] "6" "29" "31" "32" "52" "55" "63" "71" "72" "80" "88" >>> "89" >>> "91" "93" "105" "110" "111" "117" "119" "120" >>> [21] "122" "127" "128" "133" "137" "140" "163" "165" "167" "169" "177" >>> "178" "179" "184" "186" "192" "193" "200" "201" "228" >>> etc. >>> >>> I would like to drop rows "601" & "604" to clean the dataframe. >>> >>> While data["601",] shows me the first row i'd like to drop, data[-"601",] >>> returns the following : >>> Error in -"601" : invalid argument to unary operator >>> >>> idem with data[c("601","604"),] and data[-c("601","604"),] >>> >>> It is the first time that I run into this specific error. After reading a >>> bit about it I still don't understand what it means and how to fix it. >>> >>> Thanks for reading! >>> Best, >>> Pauline. >>> >>> [[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/posti >>> ng-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >>> >> >> ______________________________________________ >> 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/posti >> ng-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > > > [[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.