% Generated by roxygen2: do not edit by hand

% Please edit documentation in R/shaPRS.R

\name{shaPRS_rho}

\alias{shaPRS_rho}

\title{Calculate rho to be used in shaPRS_adjust()}

\usage{

shaPRS_rho(nkl0, nk1, nk0, nl1, nl0)

}

\arguments{

\item{nkl0}{number of controls overlapping between studies}

\item{nk1}{number of cases in study k}

\item{nk0}{number of controls in study k}

\item{nl1}{number of cases in study l}

\item{nl0}{number of controls in study l}

}

\value{

returns real value of the approximate correlation

}

\description{

Convenience function to estimate the correlation between  two studies with overlapping controls

for more details see:

Lin et al. 'Meta-Analysis of Genome-wide Association Studies with Overlapping Subjects' (2009

ncbi.nlm.nih.gov/pmc/articles/PMC2790578

}

\examples{

rho = shaPRS_rho(nkl0 = 9492,nk1 = 3810, nk0= 9492, nl1= 3765,nl0= 9492)

}