---
name: "PGAGetBinaryAllele"
section: "1"
platform: "linux"
package: "pgapack"
version: "1.1.1-3"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/PGAGetBinaryAllele"
---

# PGAGetBinaryAllele(1)

returns the value of a (binary) allele in a PGA\_DATATYPE\_BINARY string

## NAME

PGAGetBinaryAllele - returns the value of a (binary) allele in a PGA\_DATATYPE\_BINARY string

## INPUT PARAMETERS

- ctx

  \- context variable

- p

  \- string index

- pop

  \- symbolic constant of the population the string is in

- i

  \- allele index

## OUTPUT PARAMETERS

- none

  ## SYNOPSIS

```
#include "pgapack.h"
int  PGAGetBinaryAllele(ctx, p, pop, i)
PGAContext *ctx
int p
int pop
int i
```

## LOCATION

binary.c

## EXAMPLE

```
Example:
Copies the alleles from member p in PGA_OLDPOP to member q PGA_NEWPOP.
Assumes the strings are of the same length.
PGAContext *ctx;
int p, q, i;
:
for (i=PGAGetStringLength(ctx)-1; i>=0; i--)
PGASetBinaryAllele(ctx, q, PGA_NEWPOP, i,
PGAGetBinaryAllele(ctx, p, PGA_OLDPOP, i))
```