corrected issue in frailty.fit function for option GE
option JSW (Jorgensen-Seshadri-Whitmore) was added in frailty.fit
function
1.13
option GE (generalized exponential) was added in frailty.fit
function
1.12
corrected the frailty variance for the MIG and MBS models
1.11
corrected the observed log-likelihood function for the MIG
model
option MBS (mixture of Birnbaum-Saunders) was added in frailty.fit
function
1.10
corrected the variance of frailty for the MIG model and its
estimated standard error
1.9
option MIG (mixture of inverse gaussian) was added in frailty.fit
function
1.8
removed dependency of frailtypack package
1.7
option TN (truncated normal) was added in frailty.fit function
1.6
fixed bugs in summary.extrafrail function to compute p-values
1.5
option exp (exponential) was added in frailty.fit function as
baseline model
fixed bugs in summary.extrafrail function for pe distribution as
baseline model
1.4
option pe (piecewise exponential) was added in frailty.fit function
as baseline model
1.3
option BS (Birnbaum-Saunders) was added in frailty.fit function
1.2
fixed bugs in summary.extrafrail function
1.1
function frailtyWL was deprecated
function frailty.fit was included. Besides the shared weighted
Lindley frailty model, this function allows to perform estimation for
the shared gamma and shared inverse gaussian frailty models.