NEWS

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extrafrail 1.12 (2024-09-23)

• corrected the frailty variance for the MIG and MBS models

extrafrail 1.11 (2024-09-02)

• corrected the observed log-likelihood function for the MIG model
• option MBS (mixture of Birnbaum-Saunders) was added in frailty.fit function

extrafrail 1.10 (2024-06-16)

• corrected the variance of frailty for the MIG model and its estimated standard error

extrafrail 1.9 (2024-03-17)

• option MIG (mixture of inverse gaussian) was added in frailty.fit function

extrafrail 1.8 (2023-09-26)

• removed dependency of frailtypack package

extrafrail 1.7 (2023-08-09)

• option TN (truncated normal) was added in frailty.fit function

extrafrail 1.6 (2023-05-15)

• fixed bugs in summary.extrafrail function to compute p-values

extrafrail 1.5 (2023-04-06)

• option exp (exponential) was added in frailty.fit function as baseline model
• fixed bugs in summary.extrafrail function for pe distribution as baseline model

extrafrail 1.4 (2023-03-29)

• option pe (piecewise exponential) was added in frailty.fit function as baseline model

extrafrail 1.3 (2023-01-29)

• option BS (Birnbaum-Saunders) was added in frailty.fit function

extrafrail 1.2 (2022-09-26)

• fixed bugs in summary.extrafrail function

extrafrail 1.1 (2022-08-06)

• 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.