stata15有命令
[R] fracreg -- Fractional response regression
Description
fracreg fits a fractional response model for a dependent variable that is
greater than or equal to 0 and less than or equal to 1. It uses a probit,
logit, or heteroskedastic probit model for the conditional mean. These
models are often used for outcomes such as rates, proportions, and
fractional data.
[R] betareg -- Beta regression
(View complete PDF manual entry)
Description
betareg estimates the parameters of a beta regression model. This model
accommodates dependent variables that are greater than 0 and less than 1,
such as rates, proportions, and fractional data.


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