Unit-Weibull regression models for proportions: Unit-Weibull regression models for proportions
Description
Unit-Weibull regression models for proportions.
Usage
unitweib.reg(y, x, tau = 0.5)
Arguments
y
A numerical vector proportions. 0s and 1s are allowed.
x
A matrix or a data frame with the predictor variables.
tau
The quantile to be used for estimation. The default value is 0.5 yielding the median.
Value
A list including:
loglik
The loglikelihood of the regression model.
info
A matrix with all estimated parameters, their standard error, their Wald-statistic and its associated p-value.
Details
See the reference paper.
References
Mazucheli J., Menezes A. F. B., Fernandes L. B., de Oliveira R. P. and Ghitany M. E. (2020).
The unit-Weibull distribution as an alternative to the Kumaraswamy distribution for the modeling of quantiles conditional on covariates.
Journal of Applied Statistics, 47(6): 954--974.