there is something wrong :

scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  :
  scan() needs 'a real', but not 'H20100903.TXT'

2012/3/7 jim holtman <jholtman@gmail.com>

> This works fine for me; look at your options on 'scan':
>
>
> > x <- scan(text = "H20100902.TXT
> + H20100903.TXT
> + H20100904.TXT
> + H20100905.TXT
> + H20100906.TXT
> + H20100907.TXT
> + H20100908.TXT", what = '')
> Read 7 items
> > cat(x, file = 'file.txt', sep = '\n')  # create the 'file.txt'
> >
> > files <- scan('file.txt', what = '')  # read names from the file
> Read 7 items
> > files  # display the names
> [1] "H20100902.TXT" "H20100903.TXT" "H20100904.TXT" "H20100905.TXT"
> "H20100906.TXT"
> [6] "H20100907.TXT" "H20100908.TXT"
> >
>
>
> On Wed, Mar 7, 2012 at 8:49 AM, Jie Tang <totangjie@gmail.com> wrote:
> > hi everyone .
> > I have a group of files that needs to be read in .
> > And I put their filename into one file with the name "file.txt"
> >
> > And in the file.txt,the filename are shown as below :
> > H20100902.TXT
> > H20100903.TXT
> > H20100904.TXT
> > H20100905.TXT
> > H20100906.TXT
> > H20100907.TXT
> > H20100908.TXT
> >
> > Now I want to read these file from the file.txt by such  codes:
> >
> >
> > filename <-("file.txt")
> >
> > pp <- scan(filename,what=list(""),sep=" ")
> >
> > but R shows  that :
> >> pp
> > [[1]]
> >
> > that is pp is just one dimension data?
> >
> > but when I type
> >>pp[1]
> > the filenames are shown.
> >
> > How could I read these filenames into one array
> > and so that .I can read the data by such a command ?
> >
> > ddata<-scan(pp[2],what=datalist,na.strings = 999)
> >
> > thank you .
> > --
> > TANG Jie
> > Email: totangjie@gmail.com
> > Tel: 0086-2154896104
> > Shanghai Typhoon Institute,China
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@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
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>



-- 
TANG Jie
Email: totangjie@gmail.com
Tel: 0086-2154896104
Shanghai Typhoon Institute,China

	[[alternative HTML version deleted]]

