[ROOT] How to set the X title and y ttitle for TGraphError object

From: Zhou Zhang (zhozhang@ic.sunysb.edu)
Date: Mon Jun 26 2000 - 22:31:46 MEST 

Hi rooters,

  I have a TGraphErrors object. Its x title and y title need to be set. 
But I don't know how to do it because the TGraph has no method such as 
SetXTitle for the TH1F. Who could tell me how to do it?

   thanks ,

zhangz

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