I have a question for you. What's your purpose to put "additional text" in the margin? In your code, the first expression(A[1]~B[2]) corresponds to text. If you wanna "additional text" together with expression(A[1]~B[2]), you should use paste. If you can clarify what kind of margin you want, that would be better to clear your confusions. By the way, you forgot a right ")" after ylab= statement. -- View this message in context: http://n4.nabble.com/margin-text-warning-message-NAs-coercion-tp1557567p1557591.html Sent from the R help mailing list archive at Nabble.com.
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