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

# PGAGetSortedPopIndex(8)

returns a population string index from the array created by PGASortPop().

## NAME

PGAGetSortedPopIndex - returns a population string index from the array created by PGASortPop().

## INPUT PARAMETERS

- ctx

  \- context variable

- n

  \- specified which index element is to be returned.

## OUTPUT PARAMETERS

- none

  ## SYNOPSIS

```
#include "pgapack.h"
int  PGAGetSortedPopIndex(ctx, n)
PGAContext *ctx
int n
```

## LOCATION

pop.c

## EXAMPLE

```
Example:
Copy the five best strings from the old population into the new
population.  The rest of the new population will be created by
recombination, and is not shown.
PGAContext *ctx;
int i,j;
:
PGASetPopReplaceType(ctx,PGA_POPREPL_BEST)
PGASortPop(ctx, PGA_OLDPOP);
for ( i=0; i < 5; i++) {
j = PGAGetSortedPopIndex(ctx, i);
PGACopyIndividual (ctx, j, PGA_OLDPOP, i, PGA_NEWPOP);
:
```