[R] Cannot read or write to file in Linux Ubuntu

[John Kane]

Thanks. 
 I had not realsed there were relative paths until Sarah mentioned them.

It's working now: see my post to Sarah.  

John Kane
Kingston ON Canada


> -----Original Message-----
> From: jdnewmil at dcn.davis.ca.us
> Sent: Thu, 03 May 2012 09:30:10 -0700
> To: jrkrideau at inbox.com, r-help at r-project.org
> Subject: Re: [R] Cannot read or write to file in Linux Ubuntu
> 
> All of your tests are with relative paths. Use getwd() identify your
> starting directory, and if it isn't you can use setwd() to start in the
> right place.
> ---------------------------------------------------------------------------
> Jeff Newmiller                        The     .....       .....  Go
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> rocks...1k
> ---------------------------------------------------------------------------
> Sent from my phone. Please excuse my brevity.
> 
> John Kane <jrkrideau at inbox.com> wrote:
> 
> >I am the proud owner of a new laptop since my old one died the other
> >day.
> >Currently I have a dual-boot Windows 7 Home and Ubuntu 12.04 .  I'll
> >leave the Windows problems for another post.
>> 
> >I know practically nothing about Linux so I am probably doing something
> >stupid but ... at the moment I cannot seem read or write  files in
> >Ubuntu.   I am not having any problem saving other documents to the
> >hard drive and R , from my few simple tests, seems to be working okay
> >otherwise.
>> 
> >At the moment I am trying :
>> 
> >mydata <- read.csv("DATA/media/DATA/rdata/tt1.csv",  header = TRUE)
>>  or
> >mydata <- read.csv("DATA/rdata/tt1.csv",  header = TRUE)
>> 
>> 
> >where tt1.csv is a text file on what, from my reading of the path
> >listed  in gedit is
> >DATA/media/DATA/rdata
>> 
> >The csv data is simply:
> >aa, bb
> >2, 3
> >4, 5
>> 
> >What happens:
> >-------------------------------------------------------------------------------
> >1> mydata <- read.csv("DATA/rdata/tt1.csv",  header = TRUE)
> >Error in file(file, "rt") : cannot open the connection
> >In addition: Warning message:
> >In file(file, "rt") :
>>  cannot open file 'DATA/rdata/tt1.csv': No such file or directory
>> 
> >Am I totally screwing up the path?  Or doing something else equally
> >stupid?
>> 
> >BTW I realise that 2.15 is out but Ubuntu as of yesterday did not have
> >it in the repositories and I have yet to figure out how to install it
> >from a CRAN site.
>> 
> >1> sessionInfo()
> >R version 2.14.1 (2011-12-22)
> >Platform: i686-pc-linux-gnu (32-bit)
>> 
> >locale:
>> [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>> [3] LC_TIME=en_CA.UTF-8        LC_COLLATE=en_US.UTF-8
>> [5] LC_MONETARY=en_CA.UTF-8    LC_MESSAGES=en_US.UTF-8
>> [7] LC_PAPER=C                 LC_NAME=C
>> [9] LC_ADDRESS=C               LC_TELEPHONE=C
> >[11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C
>> 
> >attached base packages:
> >[1] stats     graphics  grDevices utils     datasets  methods   base
>> 
>> 
> >John Kane
> >Kingston ON Canada
>> 
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