Please (re)-read the Help file for pmatch, which says: ... " (A partial match occurs if the whole of the element of x matches the beginning of the element of table.) "
This is clearly not your situation. One approach (there may be others depending on what your detailed situation actually is) is to use regular expressions: ?regexp ?regexpr Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Jun 4, 2016 at 10:28 AM, Christofer Bogaso <bogaso.christo...@gmail.com> wrote: > Hi again, > > I am facing trouble to match a vector strings. Let say I have below > full string vector > > WhereToLook = c("ultracemco.bo.openam" , "ultracemco.bo.higham" > ,"ultracemco.bo.lowam" , "ultracemco.bo.closeam" , > "ultracemco.bo.volumeam" ,"ultracemco.bo.adjustedam") > > WhatToLook = c("volume", "close") > > Basically I need to find the positions of WhatToLook in WhereToLook. > So my code goes as below : > >> pmatch(tolower(colnames(WhereToLook)), WhatToLook) > integer(0) > > > Although I was expecting my code would point 5 & 4 respectively. > > Appreciate if someone points as correct code for above case. > > Thanks, > > ______________________________________________ > 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. ______________________________________________ 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.