Thanks Duncan for clarifying this. I'm pretty a newbie to such type of characters and special characters. In R's gsub() what regular expressions shall I use to handle all these situations?
On Fri, Apr 29, 2011 at 6:07 PM, Duncan Murdoch <murdoch.dun...@gmail.com>wrote: > On 29/04/2011 7:41 PM, Miao wrote: > >> Hello, >> >> Can anyone help on gsub() in R? I have a string like something below, and >> wanted to delete all the strings with leading backslash, including >> "\xa0On", >> "\023, "\xab", and many others. How should I write a regular expression >> pattern in gsub()? I don't care how many characters following backslash. >> > > > If those are R strings, none of them contain a backslash. In R, a > backslash would always be printed as \\. > > \x is the introduction to a hexadecimal encoding for a character; the next > two characters show the hex digits. So your first string contains a single > character \xa0, the third one contains \xab, and so on. > > The \023 is an octal encoding for a single character. > > Duncan Murdoch > > > >> txt<- "Is This Thing\xa0On? http://bit.ly/jAbKem wait \023 for people >> \xab >> and be patient :" >> >> Thanks in advance, >> Miao >> >> [[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. >> > > -- proceed everyday [[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.
