Re: [R] meta characters in file path

From: Li,Qinghong,ST.LOUIS,Molecular Biology <Qinghong.Li_at_rdmo.nestle.com>
Date: Sat 05 Aug 2006 - 01:57:26 EST


Thanks. I tried them, it works for most of those characters except "*" and "?".

Does regular expression work in file names in windows? e.g. I have a machine-generated file named "021706 matrix#1479 @50.csv", of which "1479" is kinda random. Will I be able to match "1479" with some sort of "wild card" chars?

Thanks
Johnny

-----Original Message-----
From: Tony Plate [mailto:tplate@acm.org] Sent: Thursday, August 03, 2006 3:42 PM
To: Li,Qinghong,ST.LOUIS,Molecular Biology Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] meta characters in file path

What is the problem you are having? Seems to work fine for me running under Windows2000:

 > write.table(data.frame(a=1:3,b=4:6), file="@# x.csv", sep=",")  > read.csv(file="@# x.csv")
   a b
1 1 4
2 2 5
3 3 6
 > sessionInfo()
Version 2.3.1 (2006-06-01)
i386-pc-mingw32

attached base packages:
[1] "methods" "stats" "graphics" "grDevices" "utils" "datasets" [7] "base"

other attached packages:

      XML
"0.99-8"
 >

Li,Qinghong,ST.LOUIS,Molecular Biology wrote:
> Hi,
>
> I need to read in some files. The file names contain come meta characters such as @, #, and white spaces etc, In read.csv, file= option, is there any way that one can make the function to recognize a file path with those characters?
>
> Thanks
> Johnny
>
> [[alternative HTML version deleted]]
>
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R-help@stat.math.ethz.ch 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. Received on Sat Aug 05 02:14:56 2006

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