R help - Nov 2007 - Some problem in opening connection with" .dat" extention file in matrix(scan) function of R 2.5

Dear helpers please provide me some helpful answer to my problem while I m
trying to run a program .I m attaching both the program and the data to
which I have to obtain my estimation results.
"Motives.dat" is the data file, and "OBTfile4.3" is the
complete code of
program. by Running this
 //
rawdata<-matrix(scan(inputFile, n = nsubj*ncomp), nsubj, ncomp, byrow = TRUE)
 \\
The error appears to be
//
Error in file(file, "r") : unable to open connection
In addition: Warning message:
cannot open file 'motives_pc.dat', reason 'No such file or
directory' in:
file(file, "r")
\\
where # name of preferences data file is assigned as,
       inputFile <- "motives_pc.dat
Thanking Regards

SYED ADIL HUSSAIN (+923455205402)
QUAID-E-AZAM UNIVERSITY
ISLAMABAD, PAKISTAN.

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I would assume that the file that you are trying to read is not in the
current directory your program is in.  Do 'list.files()' to see what
is in the current directory.  Also use 'setwd' to get you to the
directory you should be in.

On 11/1/07, adilshah at stat.qau.edu.pk <adilshah at stat.qau.edu.pk>
wrote:
> Dear helpers please provide me some helpful answer to my problem while I m
> trying to run a program .I m attaching both the program and the data to
> which I have to obtain my estimation results.
> "Motives.dat" is the data file, and "OBTfile4.3" is the
complete code of
> program. by Running this
>  //
> rawdata<-matrix(scan(inputFile, n = nsubj*ncomp), nsubj, ncomp, byrow =
TRUE)
>  \\
> The error appears to be
> //
> Error in file(file, "r") : unable to open connection
> In addition: Warning message:
> cannot open file 'motives_pc.dat', reason 'No such file or
directory' in:
> file(file, "r")
> \\
> where # name of preferences data file is assigned as,
>       inputFile <- "motives_pc.dat
> Thanking Regards
>
> SYED ADIL HUSSAIN (+923455205402)
> QUAID-E-AZAM UNIVERSITY
> ISLAMABAD, PAKISTAN.
>
> This is Virus Free Email Scanned by QAU's McAfee Virus Scanner
> ""THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE
PROPRIETARY MATERIAL
> and is thus for use only by the intended recipient. If you received this in
error, please contact the sender and delete the e-mail
> and its attachments from all computers."
> www.qau.edu.pk
>
> ______________________________________________
> 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.
>
>
>

-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?

The error message is telling you that R cannot find your file.  Is your 
'motives_pc.dat' file in your R working directory?  If not, you have to 
give a complete path to the scan() function.

Julian


adilshah at stat.qau.edu.pk wrote:
> Dear helpers please provide me some helpful answer to my problem while I m
> trying to run a program .I m attaching both the program and the data to
> which I have to obtain my estimation results.
> "Motives.dat" is the data file, and "OBTfile4.3" is the
complete code of
> program. by Running this
>  //
> rawdata<-matrix(scan(inputFile, n = nsubj*ncomp), nsubj, ncomp, byrow =
TRUE)
>  \\
> The error appears to be
> //
> Error in file(file, "r") : unable to open connection
> In addition: Warning message:
> cannot open file 'motives_pc.dat', reason 'No such file or
directory' in:
> file(file, "r")
> \\
> where # name of preferences data file is assigned as,
>        inputFile <- "motives_pc.dat
> Thanking Regards
> 
> SYED ADIL HUSSAIN (+923455205402)
> QUAID-E-AZAM UNIVERSITY
> ISLAMABAD, PAKISTAN.
> 
> This is Virus Free Email Scanned by QAU's McAfee Virus Scanner
> ""THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE
PROPRIETARY MATERIAL
> and is thus for use only by the intended recipient. If you received this in
error, please contact the sender and delete the e-mail
> and its attachments from all computers."
> www.qau.edu.pk
> 
> 
> ------------------------------------------------------------------------
> 
> ______________________________________________
> 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.