Not quite sure if I understand you.
list.files() simply returns a character vector(not a list). You can simply
use a vector index to select whatever file you wish to read. So if your
desired filename is the 5th element of filelist above, something like
myfile <- read.table(filename[5], ...)
You can also use regular expressions to choose a bunch of files that have
some common signature to their names that you can read in simultaneously
using your "filelist" vector of names via something like:
myfiles <- lapply(grep("weath", filelist, value = TRUE), \(x)
read.table(x,...))
### Note that the result of lapply *is* a list, so use list indexing for
extraction from myfiles.
You can also choose files to read interactively (via a GUI interface) using
file.choose() instead of using list.files() if you prefer to do it that way.
Cheers,
Bert
On Wed, Nov 6, 2024 at 8:25 AM Sibylle Stöckli via R-help <
r-help@r-project.org> wrote:
> Dear community
>
> To import multiple .dat weather files I am using list.files().
> I intend to use the R package “ClimInd” to calculate different
> agroclimatic indicators.
>
> Question: Is there another solution to import multiple .dat files so that
> I can select elements from the list, e.g. one specific weather file
> (example AAR_DailyWeather)?
>
>
> # Import multiple .dat files weather data
> filelist <- list.files(path =
> "O:/Data-Work/……./Daten_RA-MeteoCH_1990-2021", pattern='*.dat', all.files=
> T, full.names= T)
> W <- lapply(filelist, function(x) read.table(x, header = TRUE, sep = "",
> colClasses = "numeric", comment.char = ""))
> W[[1]]
>
> > dd(data = W[[1]]$Precip, time.scale = W[[1]]$year)
> Fehler in W[[1]]$year : $ operator is invalid for atomic vectors
>
> Kind regards
> Sibylle
>
>
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> https://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide https://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
