The problem is that a buffer is not being zeroed, so you have part of the
previous filename. I don't even get that far as the first read is
incorrect for me.
The code is plain wrong for multi=FALSE as the return format of
GetOpenFileName is different.
Fixed for R 1.9.1.
On Fri, 23 Apr 2004 [EMAIL PROTECTED] wrote:
> Full_Name: Kevin Wright
> Version: 1.8.0
> OS: Windows 95
> Submission from: (NULL) (170.54.59.160)
>
>
>
> This bug also happens to me using R 1.9.0 on Windows 2000.
>
> Took me a long time to create a reproducible bug, but I think I have succeeded.
> I suspect my test function has a bug, but I don't see anything wrong. Plus, the
> bug only shows up when selecting certain filenames. Nearest I can speculate,
> choose.files becomes confused after a filename that has capital letters and
> numbers has been chosen. Sounds crazy and I'd like to know more, but
> choose.files is mostly .Internal code.
>
> First, create two CSV files.
>
> library(nlme)
> data(Oats)
> write.table(Oats,"c:/oats.csv",sep=",")
> write.table(Oats,"c:/C20oats.csv",sep=",")
>
> Quit R and restart. Follow the steps below. Select oats.csv the first 4 times,
> then select C20oats.csv and then select oats.csv . Notice how the filename is
> corrupted the final time.
>
>
> test <- function(){
> cat("press ENTER for a gui file selector\n")
> gas.filename<-readline()
> if(gas.filename=="")
> gas.filename <- choose.files("*.csv",multi=FALSE,caption="Hi")
> if(file.exists(gas.filename)){
> cat("Reading ",gas.filename,"\n")
> DFgas<-read.csv(gas.filename)
> }
> else
> cat("The file",gas.filename," cannot be found\n")
>
>
> cat("press ENTER for a gui file selector\n")
> nir.filename<-readline()
> if(nir.filename=="")
> nir.filename <- choose.files("*.csv",multi=FALSE,
> caption="Choose one gas CSV file")
> if(file.exists(nir.filename)){
> cat("Reading ",nir.filename,"\n")
> DFnir<-read.csv(nir.filename)
> }
> else
> cat("The file", nir.filename," cannot be found\n")
>
> }
>
> > test()
> press ENTER for a gui file selector
>
> Reading C:\oats.csv
> press ENTER for a gui file selector
>
> Reading C:\oats.csv
> > test()
> press ENTER for a gui file selector
>
> Reading C:\oats.csv
> press ENTER for a gui file selector
>
> Reading C:\oats.csv
> > test()
> press ENTER for a gui file selector
>
> Reading C:\C20oats.csv
> press ENTER for a gui file selector
>
> The file C:\oats.csv\sv cannot be found
> >
>
> ______________________________________________
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>
>
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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