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

# PGASetRealAllele(1)

sets the value of real-valued allele i in string p in population pop

## NAME

PGASetRealAllele - sets the value of real-valued allele i in string p in population pop

## INPUT PARAMETERS

- ctx

  \- context variable

- p

  \- string index

- pop

  \- symbolic constant of the population the string is in

- i

  \- allele index

- val

  \- real value to set the allele to

## OUTPUT PARAMETERS

- side

  \-effect.

## SYNOPSIS

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

## LOCATION

real.c

## EXAMPLE

```
Sets the value of the ith allele of string p in population PGA_NEWPOP
to 1.57
PGAContext *ctx;
int i, p;
:
PGASetRealAllele ( ctx, p, PGA_NEWPOP, i, 1.57)
```