Last data update: 2014.03.03

R: 1-sided Fisher's test of linkage disequilibrium
Fisher1sidedR Documentation

1-sided Fisher's test of linkage disequilibrium

Description

1-sided Fisher's test of linkage disequilibrium

Usage

Fisher1sided(ctable, side = "great")

Arguments

ctable

Vector of the 4 entries in the 2x2 contingency table

side

"great" or "less" according to which tail you are interested in

Value

pval.Fish

P-value

Prob

Probability of the contingency under the null

yobs

The observed n11 (first cell in the table)

n1

Row margin

n2

Column margin

nn

Sample size

Author(s)

Alex Lewin

References

Kulinskaya and Lewin 2008

Examples

ctable <- c(4,5,1,20)
Fisher1sided(ctable) 

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(LDtests)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/LDtests/Fisher1sided.Rd_%03d_medium.png", width=480, height=480)
> ### Name: Fisher1sided
> ### Title: 1-sided Fisher's test of linkage disequilibrium
> ### Aliases: Fisher1sided
> ### Keywords: htest
> 
> ### ** Examples
> 
> ctable <- c(4,5,1,20)
> Fisher1sided(ctable) 
[1] 0 1 2 3 4 5
$pval.Fish
[1] 0.01945181

$Prob
[1] 0.01856764

$yobs
[1] 4

$n1
[1] 9

$n2
[1] 5

$nn
[1] 30

> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>