[R] strsplit and sapply
baron at psych.upenn.edu
Fri Apr 11 13:26:22 CEST 2008
Here is a command I wrote to get the part of the email address before
the @ sign. It works, but I don't know why. The variable called
email is a vector of email addresses (not yet in character form, so
that is why I need "as character").
names(Score) <- sapply(email,function(x)
On 04/11/08 04:12, Dennis Fisher wrote:
> I have some text:
> TEXT <- c("a", "bb;ccc", "dddd;eeeee;ffffff")
> I want to retrieve the portion of each element before the first
> semicolon. I can split each element using strsplit:
> SPLIT <- strsplit(TEXT, ";")
> This yields:
> > SPLIT
>  "a"
>  "bb" "ccc"
>  "dddd" "eeeee" "ffffff"
> Now I need to access the  portions of [[n]] - ("a", "bb",
> "dddd"). I suspect that sapply is the correct tool here but the
> syntax eludes me. Can anyone direct me to the correct syntax?
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone: 1-866-PLessThan (1-866-753-7784)
> Fax: 1-415-564-2220
> [[alternative HTML version deleted]]
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Jonathan Baron, Professor of Psychology, University of Pennsylvania
Home page: http://www.sas.upenn.edu/~baron
Editor: Judgment and Decision Making (http://journal.sjdm.org)
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