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.