On 13-May-09 19:49:35, Steve Sidney wrote:
> Dear list
> I have managed to write a short program to evaluate data which is
> inputted from a csv file using the following
>
> x = read.csv("wms_results.csv", header=TRUE)
>
> All works fine but since I have a number of similar data files which
> have different names, I would like the program to allow me to input
> the file name, rather than having to edit the program.
>
> From the documentation I am unclear how to replace the "filename.csv"
> with a string varaiable so that from the keyboard I can input the name.
>
> Also which command can I use to output some text to the monitor as a
> prompt
>
> Any help would be great and apologies for such a simple question.
> Thanks
>
> Regards
> Steve
Try:
NextFile <- readline("Enter the CSV filename:\n")
x = read.csv(NextFile, header=TRUE)
You will then get a prompt "Enter the CSV filename:"
so enter it. Then it will read it.
Example (from the terminal):
> NextFile <- readline("Enter the CSV filename:\n")
Enter the CSV filename:
ACBDEFG.csv
> NextFile
[1] "ACBDEFG.csv"
>
Ted.
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E-Mail: (Ted Harding) <[email protected]>
Fax-to-email: +44 (0)870 094 0861
Date: 13-May-09 Time: 21:12:19
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