Hello, i'm here to have an explenation about time series I have to analize a time series of a stock prices and i don't understand the meaning of "ts" .. i load, for instance mps <- get.hist.quote(instrument = "bmps.mi" , quote="Close", start="2006-01-01", end="2012-09-30", compression="d") and i get a value mps(zoo) ... if i run "mps" i get this : <http://r.789695.n4.nabble.com/file/n4651620/Immagine.png> isn't that a time series already? why do i have to transform it with ts or read.ts? I don't get the point Thank you for your availability Have a good day -- View this message in context: http://r.789695.n4.nabble.com/What-is-ts-command-for-tp4651620.html Sent from the R help mailing list archive at Nabble.com.