lexc_alphaweibull

calculates the instantaneous excess hazard from a Weibull distribution

internal

Fits a variety of cure models using excess hazard modeling methodology such as the mixture model proposed by Phillips et al. (2002) <doi:10.1002/sim.1101> The Weibull distribution is used to represent the survival function of the uncured patients; Fits also non-mixture cure model such as the time-to-null excess hazard model proposed by Boussari et al. (2020) <doi:10.1111/biom.13361>.

Juste Goungounga

curesurv

Mixture and Non Mixture Parametric Cure Models to Estimate Cure
Indicators

Judith Breaud

Olayide Boussari

Laura Botta 

Valerie Jooste

lexc_alphaweibull function

<dl><dt>z_ucured</dt>
<dd>covariates matrix acting on survival function of uncured</dd>
<dt>z_pcured</dt>
<dd>covariates matrix acting on cure proportion.</dd>
<dt>x</dt>
<dd>the time arguments at which to calculate the cumulative excess hazard</dd>
<dt>theta</dt>
<dd>the parameters of the cumulative excess hazard from a
Weibull distribution</dd>
<dt>sign_delta</dt>
<dd>only used for mixture cure rate models to specify if the
effects or minus the effects of covariates acting on uncured survival to be
considered. Default will be sign_delta = "1". The alternative is
sign_delta = "-1".</dd></dl>

Arguments

lexc_alphaweibull function — lexc_alphaweibull

<dl>

<dt>z_ucured</dt>
<dd>covariates matrix acting on survival function of uncured</dd>


<dt>z_pcured</dt>
<dd>covariates matrix acting on cure proportion.</dd>


<dt>x</dt>
<dd>the time arguments at which to calculate the cumulative excess hazard</dd>


<dt>theta</dt>
<dd>the parameters of the cumulative excess hazard from a
Weibull distribution</dd>


<dt>sign_delta</dt>
<dd>only used for mixture cure rate models to specify if the
effects or minus the effects of covariates acting on uncured survival to be
considered. Default will be sign_delta = "1". The alternative is
sign_delta = "-1".</dd>

</dl>

lexc_alphaweibull: lexc_alphaweibull function

Description

Usage

Value

Arguments

References