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Unformatted text preview: imilar way as in logistic
ri = i√ i , i = 1, 2, . . . , K
where oi is the observed value and ei is the expected
ei computed as nπi
Compared with oi = yi .
Similar to ideas in a one-way contingency tables
Chi-square statistic: applies if each category has a
unique set of covariates
2 ri2 X=
i =1 UNM Odds ratio
Suppose we have a covariate X , where X = 0 factor is
absent and X = 1 factor is present.
= β0j + β1j X ; j = 2, . . . , K
If πjp (πja ) is the response probability associated to factor
For X = 0,
and for X = 1,
π1 = β0j + β1j
UNM Odds ratio for exposure for response j
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This note was uploaded on 01/27/2014 for the course STAT 574 taught by Professor Gabrielhuerta during the Fall '13 term at New Mexico.
- Fall '13