## It's not a data frame -- it's just a vector. > x [1] "abc/def" "ghi/jkl/mno" > gsub("[^/]","",x) [1] "/" "//" > nchar(gsub("[^/]","",x)) [1] 1 2 >
?gsub ?nchar -- Bert On Thu, Dec 1, 2011 at 8:32 AM, Douglas Esneault <douglas.esnea...@mecglobal.com> wrote: > I am new to R but am experienced SAS user and I was hoping to get some help > on counting the occurrences of a character within a string at a row level. > > My dataframe, x, is structured as below: > > Col1 > abc/def > ghi/jkl/mno > > I found this code on the board but it counts all occurrences of "/" in the > dataframe. > > chr.pos <- which(unlist(strsplit(x,NULL))=='/') > chr.count <- length(chr.pos) > chr.count > [1] 3 > > I'd like to append a column, say cnt, that has the count of "/" for each row. > > Can anyone point me in the right direction or offer some code to do this? > > Thanks in advance for the help. > > Doug Esneault > > > > > > > Privileged/Confidential Information may be contained in this message. If you > are not the addressee indicated in this message (or responsible for delivery > of the message to such person), you may not copy or deliver this message to > anyone. In such case, you should destroy this message and kindly notify the > sender by reply email. Please advise immediately if you or your employer > does not consent to email for messages of this kind. Opinions, conclusions > and other information in this message that do not relate to the official > business of the GroupM companies shall be understood as neither given nor > endorsed by it. GroupM companies are a member of WPP plc. For more > information on our business ethical standards and Corporate Responsibility > policies please refer to our website at > http://www.wpp.com/WPP/About/ > > > ______________________________________________ > 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 Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.