[R] Using multiple dat files

[Rui Barradas]

Às 06:29 de 06/11/2024, Sibylle Stöckli via R-help escreveu:
> 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
>   
>   
>   
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Hello,

I find it strange that the error is complaining about the 2nd argument, 
W[[1]]$year. It seems that column W[[1]]$Precip exists but not year.

What does

str(W[[1]])

return? A data.frame?

And why sep = "" when reading the files, aren't those files csv files?

Hope this helps,

Rui Barradas


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