Re: [R] about string

From: Dimitris Rizopoulos <dimitris.rizopoulos_at_med.kuleuven.be>
Date: Tue 06 Jun 2006 - 18:24:41 EST

try the following:

strg <- "abc"
nchar(strg)
############
strg <- c("f:\\JPCS_signal.txt", "f:\\PC1_signal.txt",

          "f:\\PC2_signal.txt")
strg. <- sapply(strsplit(strg, "\\\\"), "[", 2) sapply(strsplit(strg., "_"), "[", 1)

I hope it helps.

Best,
Dimitris



Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium

Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


> Hello sir:
> There are 2 questions about string.
> 1 How to calculate the width of a string? e.g string "abc"'s width
> is 3;
> 2 How can I get the "substring" in such kind of condition:
> "f:\\JPCS_signal.txt" "f:\\PC1_signal.txt" "f:\\PC2_signal.txt"
> What I wanna get is "JPCS" "PC1" "PC2".How can I achieve them by R
> cammand?
>
> Thanks a lot!
>
> My best
>
>
>
>
> ------------------------------
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> Xin Meng
> Capitalbio Corporation
> National Engineering Research Center
> for Beijing Biochip Technology
> BioPharma-informatics & Software Dept.
> Research Engineer
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>


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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Jun 06 18:26:43 2006

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