Last data update: 2014.03.03

R: Function to compute allele frequencies
afR Documentation

Function to compute allele frequencies

Description

Function af computes the allele frequencies for a matrix or a vector containing genotypic compositions.

Usage

af(x)

Arguments

x

a vector or matrix with compositions

Value

a vector with allele frequencies

Author(s)

Jan Graffelman (jan.graffelman@upc.edu)

See Also

maf

Examples

   X <- as.vector(rmultinom(1,100,c(0.5,0.4,0.1)))
   X <- X/sum(X)
   print(X)
   print(af(X))

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)

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> library(HardyWeinberg)
Loading required package: mice
Loading required package: Rcpp
mice 2.25 2015-11-09
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/HardyWeinberg/af.Rd_%03d_medium.png", width=480, height=480)
> ### Name: af
> ### Title: Function to compute allele frequencies
> ### Aliases: af
> ### Keywords: misc
> 
> ### ** Examples
> 
>    X <- as.vector(rmultinom(1,100,c(0.5,0.4,0.1)))
>    X <- X/sum(X)
>    print(X)
[1] 0.55 0.29 0.16
>    print(af(X))
[1] 0.695
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>