Hi Jorge, This is doing the work just fine. Thank you ! However, I would like to know what should be done with the grep call... just for my personal education :)
Sebastien Jorge Ivan Velez a écrit : > > Dear Sébastien, > > Is this what you want? > > which(myStr==headers) > [1] 2 > > which(headers%in%myStr) > [1] 2 > > > HTH, > > Jorge > > > > On Sun, Aug 31, 2008 at 10:28 AM, Sébastien <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Dear R-users, > > I need to dynamically recognize the index of a given string myStr > in a vector of string. The problem is that myStr might contain > parenthesis, causing grep not to recognize it the way I want (see > below). The help mentions that the pattern used by grep should be > in the POSIX format... I guess the problem is here; unfortunately, > I am not familiar with the subtleties of the POSIX format > > ex: > myStr <- "YD(001)" > headers <-c("TD", "YD(001)", "YD(002)", "T", "Y(001)", "Y(002)") > grep(myStr, headers) > > How should I modify my grep call to get the match right? > > Thank you for your help, > > Sebastien > > ______________________________________________ > R-help@r-project.org <mailto: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. > > [[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.
