Hello!
I have just uninstalled the R 2.4.1 that i was using and installed the latest
version (R 2.12.1).
In order to read a text file, i was copying the text file to C/Program Files/R/R
2.4.1, and the previous version was able to read it from there.
I did the same think for the new version (copy text file to C/Program Files/R/R
2.12.1) and i tried to open it:
data <- read.table('intersand.txt')
but the result was:
Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") :
cannot open file 'intersand.txt': No such file or directory
Can someone tell me what the problem is? Must i copy the text file somewhere
else?
Thank you in advance,
George Pantopoulos
[[alternative HTML version deleted]]
Hello,
Make sure you have your file in your workspace directory (you can get it on your
R console with the command getwd()).
HTH,
Samuel
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of George Pantop
Sent: 08 February 2011 13:19
To: r-help at r-project.org
Subject: [R] text file problem-Help needed
Hello!
I have just uninstalled the R 2.4.1 that i was using and installed the latest
version (R 2.12.1).
In order to read a text file, i was copying the text file to C/Program Files/R/R
2.4.1, and the previous version was able to read it from there.
I did the same think for the new version (copy text file to C/Program Files/R/R
2.12.1) and i tried to open it:
data <- read.table('intersand.txt')
but the result was:
Error in file(file, "rt") : cannot open the connection In addition:
Warning message:
In file(file, "rt") :
cannot open file 'intersand.txt': No such file or directory
Can someone tell me what the problem is? Must i copy the text file somewhere
else?
Thank you in advance,
George Pantopoulos
[[alternative HTML version deleted]]
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On 08/02/2011 8:19 AM, George Pantop wrote:> Hello! > I have just uninstalled the R 2.4.1 that i was using and installed the latest version (R 2.12.1). > In order to read a text file, i was copying the text file to C/Program Files/R/R 2.4.1, and the previous version was able to read it from there. > > I did the same think for the new version (copy text file to C/Program Files/R/R 2.12.1) and i tried to open it: > > data<- read.table('intersand.txt') > > but the result was: > > Error in file(file, "rt") : cannot open the connection > In addition: Warning message: > In file(file, "rt") : > cannot open file 'intersand.txt': No such file or directory > > Can someone tell me what the problem is? Must i copy the text file somewhere else?Use setwd(choose.dir()) to set the current working directory wherever your file is, then you'll be able to read it. Or use read.table(file.choose()) to find the file and read it from wherever it was sitting. Duncan Murdoch
The windows installer normally makes .RData files double-clickable, and when you
start R that way it sets your working directory to the directory containing the
.RData file.
I recommend that you use this feature to set your working directory to a
location convenient for you. You can also set the directory from the File menu,
but for everyday uses the following procedure is more convenient.
Start by using the Start menu to start R. Immediately select File-Save
Workspace, and use the dialog to select the directory where your text file is
and give the new .RData file a name. Save the file and quit.
Now find the RData file and double-click it. This should open RGui and your
current directory for that RGui session. You should be able to read and write
text or other files in that working directory readily for the rest of that
working session. This allows you to easily keep all of your data organized in
directories by the project you are working on.
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Sent from my phone. Please excuse my brevity.
George Pantop <george_pantop@yahoo.gr> wrote:
Hello! I have just uninstalled the R 2.4.1 that i was using and installed the
latest version (R 2.12.1). In order to read a text file, i was copying the text
file to C/Program Files/R/R 2.4.1, and the previous version was able to read it
from there. I did the same think for the new version (copy text file to
C/Program Files/R/R 2.12.1) and i tried to open it: data <-
read.table('intersand.txt') but the result was: Error in file(file,
"rt") : cannot open the connection In addition: Warning message: In
file(file, "rt") : � cannot open file 'intersand.txt': No such
file or directory Can someone tell me what the problem is? Must i copy the text
file somewhere else? Thank you in advance, George Pantopoulos [[alternative
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provide commented, minimal, self-contained, reproducible code.
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