TH1F * DrawFrame(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax, const char *title="")
Draw an empty pad frame with X and Y axis. 
virtual void SetTextFont(Font_t tfont=62)
Set the text font. 
TLatex * DrawLatex(Double_t x, Double_t y, const char *text)
Make a copy of this object with the new parameters And copy object attributes. 
virtual void SetTextAlign(Short_t align=11)
Set the text alignment. 
virtual void SetTextSize(Float_t tsize=1)
Set the text size.