file path
Why not just construct a valid file name and use that in cat? You can then use file.path to join paths together if you want to write to a specific location, as in your example. steve -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Wincent Sent: Wednesday, May 09, 2012 11:15 AM To: Tal Galili Cc: r help Subject: Re: [R] file path Hmm, I don't think it gives what I want. For example, I assign a file name to f,
f <- "a?b.txt"
file.path("e:",f)
[1] "e:/a?b.txt" The resultant character is not accepted as a file name by Windows OS.
On 9 May 2012 20:32, Tal Galili <tal.galili at gmail.com> wrote:
Hi Wincent, Have a look at: ?file.path ----------------Contact Details:------------------------------------------------------- Contact me: Tal.Galili at gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) ---------------------------------------------------------------------- ------------------------ On Wed, May 9, 2012 at 11:03 AM, Wincent <ronggui.huang at gmail.com> wrote:
Dear all, is there any function to assert whether a file path is legitimate, and to convert any potential file path to a legitimate file path? I automate a batch of files and write them to plain text files with cat(). The file argument of cat() is generated automatically which may contain characters such as ? < >, unacceptable in Windows OS. What I do at this moment is to strip such characters off with gsub(). Is there any direct way to make legitimate file path without detailed knowledge about the naming rule specific to a OS? Best -- Wincent Ronggui HUANG Sociology Department of Fudan University PhD of City University of Hong Kong http://homepage.fudan.edu.cn/rghuang/cv/
______________________________________________ R-help at r-project.org 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.
-- Wincent Ronggui HUANG Sociology Department of Fudan University PhD of City University of Hong Kong http://homepage.fudan.edu.cn/rghuang/cv/ ______________________________________________ R-help at r-project.org 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.