Dear All:
 
I am trying to compare points on two regression lines given some specific values of X. I am not sure how to do it in R and/or in SAS. Can someone help me, and show me how to conduct such test in R.
 
 
You can use the following data for both lines.
 
### data for line 1:
### =========
 
x1<-c(0.0,0.25,2.5,25.0,50.0)
y1<-c(100.0,79.0,74.0,36.0,8.0)
 
 
 
### data for line 2:
### =========

x2<-c(0.0,0.25,2.5,25.0,50.0)
y2<-c(100.0,79.0,55.0,18.0,2.0)
 
 
### these are the given values of X:
###  ===================

x<-c(0.10,0.20,2.0,15.0,35.0)
 
 
thank you very much in advance
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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