---
name: "PGASetCharacterAllele"
section: "3"
platform: "linux"
package: "pgapack"
version: "1.0.0.1-3"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/PGASetCharacterAllele/3"
---

# PGASetCharacterAllele(3)

sets the value of an allele in a PGA\_DATATYPE\_CHARACTER string.

## NAME

PGASetCharacterAllele - sets the value of an allele in a PGA\_DATATYPE\_CHARACTER string.

## INPUT PARAMETERS

- ctx

  \- context variable

- p

  \- string index

- pop

  \- symbolic constant of the population the string is in

- i

  \- allele index

- val

  \- character value to set the allele to

## OUTPUT PARAMETERS

- side

  \-effect.

## SYNOPSIS

```
#include "pgapack.h"
void  PGASetCharacterAllele(ctx, p, pop, i, value)
PGAContext *ctx
int p
int pop
int i
char value
```

## LOCATION

char.c

## EXAMPLE

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