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...w in one box: > xyplot(m[1,] ~ seq(1:5)) but this gives all rows in the same box: > xyplot(m ~ seq(1:5)) Since there are no factors, how can I set conditioning variable to get what I want, or is there a better way to do this? Thanks in advance Ron Ron Bonner arbi56@gmail.com skype: rbonners [[alternative HTML version deleted]]