Thanks for your reply, I just want to get the figure like y1.jpg using the data from y1.txt. Through the figure I want to obtain the split point like y1.jpg, and consider 2.5 as the plit point. This figure is drawn by other people, I just want to draw it using R, but I can not, so I hope, friends can help me. Best wishes! kevin http://n4.nabble.com/file/n1965378/y1.jpg http://n4.nabble.com/file/n1965378/y1.txt y1.txt -- View this message in context: http://n4.nabble.com/how-can-I-plot-the-histogram-like-this-using-R-tp1839303p1965378.html Sent from the R help mailing list archive at Nabble.com.
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