survw_derivf

scale parameter for the Weibull distribution

ascale

shape parameter for the Weibull distribution

bshape

The function `survw_derivf` computes the derivative of the survival distribution `survw_f`.

internal

Sample size and effect size calculations for survival endpoints based on mixture survival-by-response model. The methods implemented can be found in Bofill, Shen & G<c3><b3>mez (2021) <arXiv:2008.12887>.

survw_derivf: Derivative Weibull survival function

Description

Usage

Arguments

Value