On Sun, 9 Oct 2022 12:01:27 +0100 Nick Wray <nickmw...@gmail.com> wrote:
> Error in read.table("midas_wxhrly_201501-201512.txt", fill = T) : > duplicate 'row.names' are not allowed Since you don't pass the `header` argument, I think that the automatic header detection is here at play. This is what ?read.table has to say about row names: >> If there is a header and the first row contains one fewer field than >> the number of columns, the first column in the input is used for the >> row names. Otherwise if ‘row.names’ is missing, the rows are >> numbered. Perhaps the "one fewer field in the header than the number of columns" condition is true for files after 2010? I'm too lazy to sign up for a CEDA account and I'm not sure I'd be given access to hourly datasets anyway. If this is the reason for the failure (first column used as rownames() and turns out to be non-unique), there's an easy way to fix that: >> Using ‘row.names = NULL’ forces row numbering. I don't see a header in your example. If there's actually no header containing column names, passing `header = FALSE` will both prevent the error and avoid eating the first line of the file. -- Best regards, Ivan ______________________________________________ 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 http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.