[ROOT] how to draw crossing X-axis and Y-axis for many frames?

From: Cheng Yunhua (chengyh@iopp.ccnu.edu.cn)
Date: Wed Sep 25 2002 - 09:48:12 MEST 

hi,
  I want to draw 4 graphs in one pad,and in order to save space,
I need to draw these graph in four frames which share the same  X-axis 
and  Y-axis with each other.Of course the different parts of the axises
should have different ranges and scales according to the different graphs.
how can I do it?And if I want to draw many more graphs,I need more frames,
how can I do this?
  it's show as below,

                            ^ Y-axis
                            |
                            | 2
            graph1          |      graph2
                            | 1
                            |
  -------------------------------------------------------> X-axis
   4   8   12   16             1   2   3   4   5           
                            |
            graph3          |1000       graph4
                            |
                            |100
                            |
                            |10


thanks!!

Cheng Yunhua
-- 

**************************************************************************
* Name:      Cheng Yunhua Major: high energe experiment physics      ***
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* Department:Institute of particle physics,Huazhong Normal University***
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