
Dear All:
 
Assume that we have the following (X,Y) data:
 
(X,Y): (0,6) (0.25,6) (2.5,9) (5,13) (10,11) (25,11)
 
 
X<-c(0,0.25,5,10,25)
Y<-c(6,6,9,13,11,11)
 
 
How I can compare two points on the same regression line. That is, How I can compare the Y-values with each other (Pairs by Pairs) statistically and using R. For example: how to compare the Y-value 13 corresponding the X-value 5 with the Y-value 9 corresponding to the X-value 2.5. 
 
With many thanks.
 
Abou
 
 
 
==========================
AbouEl-Makarim Aboueissa, Ph.D.
Assistant Professor of Statistics
Department of Mathematics & Statistics
University of Southern Maine
96 Falmouth Street
P.O. Box 9300
Portland, ME 04104-9300
 

Tel: (207) 228-8389
Fax: (207) 780-5607
Email: aaboueissa@usm.maine.edu 
          aboueiss@yahoo.com
 
  http://www.usm.maine.edu/~aaboueissa/ 

 
Office: 301C Payson Smith
 

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