Sorry, my last post came out unreadable. I'll try again. Here is the data.
Think of them as transposed columns. A: 1,1,1,2,3,4,5,6,6, 7B:
5,5,6,7,7,7,8,9,10,11 Split the data into two groups, each of size 5, and
make a scatterplot. Bill<-read.table('something here')
attach(Bill)Bill.s<-split(Bill, rep(1:2, each=5))plot(A,B,col='black') Group
1:A:1,1,1,2,3B:5,5,6,7,7Group 2:A:4,5,6,6,7B:7,8,9,10,11 For each group, find
the mean of B.... Group 1:mean=6. Group 2: mean=9. On the scatterplot of A vs.
B: For group 1, need horizontal line at the mean of 6. It should only cover the
points in group 1.For group 2, need horizontal line at the mean of 9. Again,
should only cover the points in group 2. The endpoints of the different
horizontal lines must connect.
I rather do this where I can change the size of the group as well. Any help is
greatly appreciated. Bill
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