It takes the response vector and produces a QQ-plot based on the estimates obtained from the sample selection model. For discrete responses normalized and randomized QQ-plots are produced.
post.check(x, bd = 1)
Binomial denominator - maximum value the response can take. This argument is only relevant in the case of BI, BB, ZIBI, ZABI, ZIBB and ZABB.
Maintainer: Giampiero Marra [email protected]
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