Dear All:
 
I want to create a scatter plot of grouping data. I have the variable x and y and the grouping variable type (1=group 1, 2=group 2) in the same plot. 
 
Also I need to add the fitted regression lines to the same plot.
 
Also, how I can change (or adjust the dots for each type). for example use the square for one type and triangle for the other type.
 
you can use the following data:
 
type x y
1 3 4
1 2 2
1 4 55
1 3 4
1 2 3
2 11 22
1 2 33
2 34 11
2 2 6
2 35 77
2 64 8
1 32 12
1 12 40
2 67 30
2 3 43
2 4 23
1 2 15
1 5 51
1 8 6
2 9 23
2 56 16
1 43 27
2 21 17
1 12 27
1 34 47
1 2 25
2 5 24
2 6 15
2 7 16
1 8 34
1 9 7
2 4 89
1 22 32
2 3 4
1 11 33
1 45 55
2 2 76
1 1 32
2 45 12
1 1 45
2 3 32
1 2 78
1 4 5
1 5 4
1 6 23
2 7 45
1 9 32
2 7 78
2 1 45
2 20 22
 
 
 
Thank you very much
abou
 
 
 
==========================
AbouEl-Makarim Aboueissa, Ph.D.
Associate Professor of Statistics
Graduate Program Coordinator
Department of Mathematics & Statistics
University of Southern Maine
96 Falmouth Street
P.O. Box 9300
Portland, ME 04104-9300
USA
 

Tel: (207) 228-8389
Fax: (207) 780-5607
Email: aaboueissa@usm.maine.edu
          aboueiss@yahoo.com
 
Office: 301C Payson Smith
 

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