- data
a numeric vector of data values; mandatory
- plot
likelihood function plots by LI; default is "all". 'OBJ', 'O1', '1' is objective function plot; 'OFV', 'O2', '2' is log likelihood function plot; 'LRT', 'O3', '3' is log LRT function plot.
- conf.level
confidence level for the interval estimation
- df
degree of freedom for likelihood interval; default is 1
- k
cutoff value for likelihood interval. If not specified, F-test is used.