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...Grand Rapids) for 1931 and 1932. Can any body tell me how I should do to create this chart with two different axes (one is yield, the other is cost)? Thank you in advance! Doug -- View this message in context: http://n4.nabble.com/How-to-create-a-line-and-bar-panel-chart-with-two-different-axes-tp1577173p1577173.html Sent from the R help mailing list archive at Nabble.com.