On Oct 28, 2009, at 10:55 AM, Val wrote:
The working directory is
getwd()
[1] "C:/Documents and Settings/Val/My Documents"
The data file(Rossi.dat) and the script(Rossi.R) are in
"C:/Documents and Settings/Val/My Documents/R_data/prd"
So you are not giving a proper path when you issue the read.table
command. The default path when not explicitly provided is to the
working directory, and you have stored your data elsewhere.
How should I write to read the file?
source(???) # what should be included here?
The guess I was about to make when I realized you were conflating data
and scripts was that you might want:
Rossi <- read.table(paste(getwd(), 'Rossi.dat', sep="/"), header=T) #
but that would not have been effectively different from the default
behavior.
So you instead want:
Rossi <- read.table(paste("C:/Documents and Settings/Val/My Documents/
R_data/prd", "Rossi.dat", sep="/"), header=T)
Only if you wanted to read in a script with valid r-code would you use
source().
I still got the same error message.
Error in file(file, "r") : cannot open the connection
In addition: Warning message:
In file(file, "r") : cannot open file 'Rossi': No such file or
directory
--
David
On Wed, Oct 28, 2009 at 10:32 AM, David Winsemius <dwinsem...@comcast.net
>wrote:
On Oct 28, 2009, at 10:04 AM, Val wrote:
Hi User's,
This might be a simple question but it is giving me a hard time as
I am a
new user.
I installed R version 2.9.2 (2009-08-24)
1. I just copied a short script from Fox (2002) as a practice
and wanted
to save it as Rossi.R.
How?
The system saved it without complain but when I looked at using a
windows
explorer it is not *.R file but only Rossi. Why this is happening?
If you were to include the code, we perhaps could tell you. In its
default
mode Windows may be hiding the extension from you. (Or possibly
because R
does not postpend file types and (I am now guessing here about a
package I
have not used and don't even know if you are) neither does Rcmdr.)
2. the script and the data files are in the same working
directory. When I
run the following script
Rossi <- read.table('Rossi',header=T)
No path specification. And ??? thought you said it was a script,
which
would have been loaded with source()
Rossi[1:5,1:10]
But this suggests you are using it as data. ????
What do you get when your type this:
getwd()
the working directory is > getwd()
[1] "C:/Documents and Settings/val/My Documents"
getwd()
Maybe if you tried (untested)... Nah ... not going to do further
guessing.
Read the posting guide and supply the missing elements.
I got the following error messages
Error in file(file, "r") : cannot open the connection
In addition: Warning message:
In file(file, "r") : cannot open file 'Rossi': No such
file or
directory
Rossi[1:5,1:10]
Error: object 'Rossi' not found
Thank you for your help in advance
Val
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
