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congenio
2009 Jan 22
1
Is there any function can be used to compare two probit models made from same data?
hi, people
How can we compare two probit models brought out from the same data?
Let me use the example used in "An Introduction to R".
"Consider a small, artificial example, from Silvey (1970).
On the Aegean island of Kalythos the male inhabitants suffer from a
congenital eye disease, the effects of which become more marked with
increasing age. Samples of islander males of various ages were tested for
blindness and the results recorded. The data is shown below:
Age: 20 35 45 55 70
No. tested: 50 50 50 50 50
No. blind: 6 17 26 37 44
"
now, we can use the age...