Thanks for the help, I really appreciate it. However, I have one more small issue and I don't really want to post a second message in such a short space of time, so I will put it up here if someone is willing to help.
Basically I need to transfer two vectors into a data.frame/matrix (with a unique name, as already discussed above). However, the numbers that enter into the data.frame do not match the numbers that I supposedly entered from the vector. Example. > instrument.input[3,6] [1] 769873.58 43 Levels: 10840277.06 109014288.37 11055630.67 11456522.47 ... CPS > data <- instrument.input[3,6] > data [1] 769873.58 43 Levels: 10840277.06 109014288.37 11055630.67 11456522.47 ... CPS Works fine if I put it as a sole varible.. however if I try adding it to a data.frame/matrix > temp.data1[1,1] <- instrument.input[3,6] > temp.data1[1,1] CPS 31 The incorrect number is given, if I've understood this properly I should be recalling 769873. Any suggestions or thoughts? Cheers Kurt > Date: Fri, 3 Jul 2009 14:22:00 +0200 > From: romain.franc...@dbmail.com > To: kurt.sm...@hotmail.co.uk > CC: R-help@r-project.org > Subject: Re: [R] Remove all spaces from a string so it can be used by assign() > > On 07/03/2009 02:13 PM, Kurt Smith wrote: > > Are you sure it would work? > > > > It works when I physically enter "56 Fe [1]" but fails when I try to > > enter that anything other then directly. > > > >> instrument.input[1,6] > > [1] 56 Fe [ 1 ] > > 43 Levels: 10840277.06 109014288.37 11055630.67 11456522.47 ... CPS > >> assign(instrument.input[1,6], temp.data) > > Error in assign(instrument.input[1, 6], temp.data) : > > invalid first argument > > that is because instrument.input[1,6] is a factor. You would need > something like this untested call : > > R> assign( as.character( instrument.input[1,6] ), temp.data ) > > Whether all of this is a good idea is up to you > > >> temp.name<- instrument.input[1,6] > >> temp.name > > [1] 56 Fe [ 1 ] > > 43 Levels: 10840277.06 109014288.37 11055630.67 11456522.47 ... CPS > >> assign(temp.name, temp.data) > > Error in assign(temp.name, temp.data) : invalid first argument > > > > and it seems that it is because the varible begins with an integer R > > doesn't like it. > > Would it be possible to use gsub to create Fe561? > > sure. > > R> gsub( "[^[:alnum:]]", "", gsub( "([[:digit:]]+)(.*)", "\\2\\1", "56 > Fe [1]" ) ) > [1] "Fe156" > > others probably have a one call solution > > >> R> gsub( "[^[:alnum:]]", "", "56 Fe [1]" ) > >> [1] "56Fe1" > > > > > > > > > Date: Fri, 3 Jul 2009 13:09:20 +0200 > > > From: romain.franc...@dbmail.com > > > To: kurt.sm...@hotmail.co.uk > > > CC: r-help@r-project.org > > > Subject: Re: [R] Remove all spaces from a string so it can be used by > > assign() > > > > > > On 07/03/2009 12:56 PM, Kurt Smith wrote: > > > > > > > > Hi > > > > > > > > I have a string "56 Fe [1]" that I would like to use as a variable > > name by using "assign" however I think the spaces and brackets might be > > causing R some trouble. > > > > > > Not really; > > > > > > R> assign( "56 Fe [1]", 10 ) > > > R> `56 Fe [1]` > > > [1] 10 > > > > > > > How can I change the string so that it just becomes 56Fe1 and can > > be used as a variable name. > > > > > > 56Fe1 is not good enough to be assigned without quotes > > > > > > R> 56Fe1 <- 10 > > > Error: unexpected symbol in "56Fe1" > > > > > > You might be interested in make.names > > > > > > R> make.names( "56 Fe [1]" ) > > > [1] "X56.Fe..1." > > > > > > Otherwise, to answer your question, you can : > > > > > > R> gsub( "[^[:alnum:]]", "", "56 Fe [1]" ) > > > [1] "56Fe1" > > > > > > > > > > Thank You > > > > > > > > Kurt > > > > > > > > > -- > > > Romain Francois > > > Independent R Consultant > > > +33(0) 6 28 91 30 30 > > > http://romainfrancois.blog.free.fr > > > |- http://tr.im/qJ8V : RGG#153: stars network > > > |- http://tr.im/qzSl : using ImageJ from R: the RImageJ package > > > `- http://tr.im/qzSJ : with semantics for java objects in rJava > > > > ------------------------------------------------------------------------ > > View your Twitter and Flickr updates from one place - Learn more! > > <http://clk.atdmt.com/UKM/go/137984870/direct/01/> > > > -- > Romain Francois > Independent R Consultant > +33(0) 6 28 91 30 30 > http://romainfrancois.blog.free.fr > |- http://tr.im/qJ8V : RGG#153: stars network > |- http://tr.im/qzSl : using ImageJ from R: the RImageJ package > `- http://tr.im/qzSJ : with semantics for java objects in rJava _________________________________________________________________ [[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.
