NEWS

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parfm 2.7.4

• the observed Fisher information matrix is now returned as attribute ('FisherI') of the returned object

parfm 2.7.3

• New baseline hazard family: inverse Weibull (Fréchet)

parfm 2.7

• optimization is now based on the optimx package
• the default optimizer is now nlminb (from the stats package)
• fixed issue in the likelihood with lognormal frailties
• new function coeff()

parfm 2.6.0

• new baseline distribution: log-skew normal

parfm 2.5.10 (2015-09-03)

• added Kendall's tau for the lognormal frailty distrubution

parfm 2.5

• new frailty distrubution available: lognormal

parfm 2.01

• Added function anova.parfm() to compare models

parfm 1.01

• Added stratification

parfm 0.66-2

• Added example datasets