On Mar 25, 2015, at 10:27 AM, Turgidson wrote: > Apologies for bringing up an old topic, but I am not finding working answers. > I am also an R newbie, so I'm still on the steep part of the learning curve. > > I have a character string : "0.5 1 2 3 4" > > I need to convert it to a vector of numbers.
The releatively recent additon of teh text parameter to scan lets you do this: scan(text="0.5 1 2 3 4" ) #Read 5 items #[1] 0.5 1.0 2.0 3.0 4.0 And the values are of course assign()-able: num <- scan(text="0.5 1 2 3 4") #Read 5 items num #[1] 0.5 1.0 2.0 3.0 4.0 In the old days one needed to use textConnection() and one still needs to do so for readLines which does not use scan(). > I get as far as strsplit(), > which gives me > > "0.5" "1" "2" "3" "4" > > this is still treated by R as a single item. I need to get it to look like > this: "0.5", "1", "2", "3", "4" > > so that I can use as.numeric() and make it into a vector of numbers... I > have been going mad because for text operations, commas and quotes are > loaded with meaning, and I keep going around in circles. > > Any help would be appreciated > > Thanks > > Paul > > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Converting-charter-string-to-vector-of-numbers-tp4705097.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. David Winsemius Alameda, CA, USA ______________________________________________ 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.
