[R] Putting directory path as a parameter
hb at biostat.ucsf.edu
Tue Nov 15 19:33:30 CET 2011
file.path() is much better for this than paste(), e.g.
dir <- "C:/Users/Desktop"
pathname <- file.path(dir, "bs_dev_segment_file.csv")
temp_data <- read.csv(pathname)
On Tue, Nov 15, 2011 at 10:08 AM, R. Michael Weylandt
<michael.weylandt at gmail.com> <michael.weylandt at gmail.com> wrote:
> Try pasting them together like
> paste(dir, "...")
> You may need to use the collapse argument. Alternatively, change your working directory to dir with setwd().
> On Nov 15, 2011, at 9:12 AM, aajit75 <aajit75 at yahoo.co.in> wrote:
>> Hi List,
>> I am new to R, this may be simple.
>> I want to store directory path as parameter which in turn to be used while
>> reading and writing data from csv files.
>> How I can use dir defined in the below mentioned example while reading the
>> csv file.
>> dir <- "C:/Users/Desktop" #location of file
>> temp_data <- read.csv("dir/bs_dev_segment_file.csv")
>> If I run this it will show errors:
>> Error in file(file, "rt") : cannot open the connection
>> In addition: Warning message:
>> In file(file, "rt") :
>> cannot open file 'dir/bs_dev_segment_file.csv': No such file or directory
>> View this message in context: http://r.789695.n4.nabble.com/Putting-directory-path-as-a-parameter-tp4043092p4043092.html
>> Sent from the R help mailing list archive at Nabble.com.
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> 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.
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