All elements of a vector must be of the same type. Rephrasing: You cannot change one element of a character vector to a numeric value. The numeric value WILL be converted into character before it is put into the target element. -- Sent from my phone. Please excuse my brevity.
On August 30, 2017 9:01:03 PM PDT, Nelly Reduan <nell.r...@hotmail.fr> wrote: >Thanks very much for your answer. > >I�m trying the function �strtoi� but it fails to convert character to >numeric after the command "set[index] <- strtoi(set[index])". > > >> strtoi(set[index]) ## This works: all values are numeric !!! > >[1] 1 2 3 4 2 8 9 7 > > > >> set[index] <- strtoi(set[index]) > > > >> print(set[10,1]) ## Problem: must be numeric !!!! > >[1] "1" > > > >Thanks very much for your help. >Nell > > >________________________________ >De : Jim Lemon <drjimle...@gmail.com> >Envoy� : mercredi 30 ao�t 2017 15:00:32 >� : Nelly Reduan; r-help mailing list >Objet : Re: [R] Converting character to numeric using the package >"XLConnect" > >Hi Nelly, >Are you trying to convert hexadecimal to decimal? > > nrdf > Setting Value >1 Parameters a >2 Parameters b >3 Parameters c >4 Parameters d >5 Parameters e >6 Parameters 2 >7 Parameters 8 >8 Parameters 9 >9 Parameters 7 >10 1 a >11 2 b >12 3 c >13 4 d > >strtoi(nrdf$Value,16) > [1] 10 11 12 13 14 2 8 9 7 10 11 12 13 > >Jim > >On Thu, Aug 31, 2017 at 6:30 AM, Nelly Reduan <nell.r...@hotmail.fr> >wrote: >> The Excel file can be found from this link: >https://1drv.ms/x/s!Apkg2VlgfYyDgQ_mcJ8F4CaXV_Nh > > [[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.
