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Tuesday, June 25, 2013
*** Two-parameter Gompertz model
Median lifespan of the 2-parameter
Survivorship
The Gompertz model in 'flexsurv' is
Notice that pdf = mortality rate * (1-s) pdf = mortality rate * s (based on mortality definition) m = - 1/s ds/dt , so - ds/dt = pdf = m * s
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