Thanks a lot! Now I have another problem with making it calculating the statistics for every station. My table has 4 columns: River, Station, Date and Value of discharge.
You can imagine, according to the length of the data series for each station, I have thousands of rows for each station (the River and Station columns vary quite a little, only when it passes to another station). But for a given River and Station, whose names repeat every row, the date (days) and values always differ. And what I want R to calculate is the multiannual statistics for every station following each other on the vertical. What command I should use so that it calculates the statistics from the column "Value of Discharge", based on the name of the station from the 2nd column? Thank you! -- View this message in context: http://r.789695.n4.nabble.com/Loading-long-CSV-tables-in-R-tp4726016p4726044.html Sent from the datatable-help mailing list archive at Nabble.com. _______________________________________________ datatable-help mailing list datatable-help@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
