% Generated by roxygen2: do not edit by hand

% Please edit documentation in R/accrual.R

\name{Generate.Accrual}

\alias{Generate.Accrual}

\title{Create An AccrualGenerator using a power law recruitment}

\usage{

Generate.Accrual(start.date, end.date, k, deterministic = FALSE,

  rec.start.date = NULL)

}

\arguments{

\item{start.date}{The start of the subject accrual period}

\item{end.date}{The date the last subject is accrued so \code{B} = 

\code{end.date} - \code{start.date} unless \code{rec.start.date} is used see 

below}

\item{k}{The non-uniformity accrual parameter}

\item{deterministic}{Logical, if FALSE then the recruitment times 

are non-stochastically chosen so that their cumulative distribution function is \code{G(t)}

otherwise they are generated by sampling random variables with a cdf \code{G(t)}}

\item{rec.start.date}{If this argument is used the subjects are still recruited between 

start.date and end.date but they follow the cdf \code{G(t)=(t^k-L^k)/(B^k-L^k)} where

\code{t} is in \code{[L,B]} and \code{B = end.date - rec.start.date} and \code{L = start.date- rec.start.date}.}

}

\value{

An AccrualGenerator object which generates the required subject accruals

}

\description{

Subjects are accrued according to the c.d.f 

\code{G(t)=t^k/B^k} where \code{k} is a parameter, 

\code{t} is the time and \code{B} is the recruitment period. 

See the predict from data vignette for further details

}