Yes, that was perfect! Thank you so much!
Just to clarify, since I'm kind of new to string manipulation-- is that '[['
in the sapply function what is designating splits/elements within the
string? So that's the part that says "I want this particular element" and
the "1" or "2" or "number" is what designates location?
And, if while looking at the second column, I want to verify if the
alphabetical character is say, a 'z' or an 'a' or a 'b', what would be an
elegant way to do that besides splitting the second column into alphabetical
and numerical values, and then testing against z,a,b, using a for loop and a
boolean statement? I want to assign a 1 for z's, a 2 for a's, and a 3 for
b's.
On Fri, Feb 5, 2010 at 10:30 AM, jholtman [via R] <
ml-node+1470341-841877...@n4.nabble.com<ml-node%2b1470341-841877...@n4.nabble.com>
> wrote:
> Does this help:
>
> > x <-
> c("1234567.z3.abcdef-gh.12","1234567.z3.abcdef-gh.12","1234567.z3.abcdef-gh.12")
>
> > y <- strsplit(x, '[.]')
> >
> > y
> [[1]]
> [1] "1234567" "z3" "abcdef-gh" "12"
>
> [[2]]
> [1] "1234567" "z3" "abcdef-gh" "12"
>
> [[3]]
> [1] "1234567" "z3" "abcdef-gh" "12"
>
> > y.1 <- sapply(y, '[[', 1)
> > y.1
> [1] "1234567" "1234567" "1234567"
> > y.2 <- sapply(y, '[[', 2)
> > y.2
> [1] "z3" "z3" "z3"
> >
>
>
> On Fri, Feb 5, 2010 at 10:11 AM, Su C. <[hidden
> email]<http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1470341&i=0>>
> wrote:
>
> >
> > I am currently attempting to split a long list of strings (let's call it
> > "string.list") that is of the format:
> >
> > "1234567.z3.abcdef-gh.12"
> >
> > I have gotten it to:
> > "1234567" "z3" "abcdef-gh" "12"
> > by use of the strsplit function.
> >
> > This leaves me with each element of "string.list" having a split string
> of
> > the above format. What I'd like to do now is extract the first two
> strings
> > of each element in "string.list" -- the "1234567" and the "z3" -- and
> place
> > them into two separate lists, say, "firstsplit.numeric.list" and
> > "secondsplit.alphanumeric.list"
> >
> > I'm having some trouble figuring out how to do this. Any help would be
> > greatly appreciated!
> > --
> > View this message in context:
> http://n4.nabble.com/String-Manipulation-Extract-numerical-and-alphanumerical-segment-tp1470301p1470301.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
> > [hidden
> > email]<http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1470341&i=1>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.
> >
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem that you are trying to solve?
>
> ______________________________________________
> [hidden
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> list
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
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>
--
Su H. Chu
Carnegie Mellon University
Economics and Statistics '09
--
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