Thanks Joshua, That did it. Cheers, Ted -- View this message in context: http://r.789695.n4.nabble.com/plotOHLC-alpha3-Error-in-plotOHLC-alpha3-x-is-not-a-open-high-low-close-time-series-tp4283217p4286963.html Sent from the R help mailing list archive at Nabble.com.