Data = readSeries(file="Data.csv1.csv",header=T,sep=",",format="%Y-%m-%d") after i enter this command it says it 'Error: could not find function "readSeries"' Please help thanks. -- View this message in context: http://r.789695.n4.nabble.com/readSeries-tp3657300p3657300.html Sent from the R help mailing list archive at Nabble.com.