Popularity
2.0
Growing
Activity
0.0
Stable
19
1
4

Programming language: Go
License: MIT License

permutation alternatives and similar packages

Based on the "Science and Data Analysis" category.
Alternatively, view permutation alternatives based on common mentions on social networks and blogs.

Do you think we are missing an alternative of permutation or a related project?

Add another 'Science and Data Analysis' Package

Popular Comparisons

SaaSHub - Software Alternatives and Reviews
Sponsored www.saashub.com

README

permutation

Simple permutation package for golang

Install

go get github.com/gitchander/permutation

Usage

permutations of int slice:

package main

import (
    "fmt"

    prmt "github.com/gitchander/permutation"
)

func main() {
    a := []int{1, 2, 3}
    p := prmt.New(prmt.IntSlice(a))
    for p.Next() {
        fmt.Println(a)
    }
}

result:

[1 2 3]
[2 1 3]
[3 1 2]
[1 3 2]
[2 3 1]
[3 2 1]

permutations of string slice:

package main

import (
    "fmt"

    prmt "github.com/gitchander/permutation"
)

func main() {
    a := []string{"alpha", "beta", "gamma"}
    p := prmt.New(prmt.StringSlice(a))
    for p.Next() {
        fmt.Println(a)
    }
}

result:

[alpha beta gamma]
[beta alpha gamma]
[gamma alpha beta]
[alpha gamma beta]
[beta gamma alpha]
[gamma beta alpha]

permutation use of AnySlice:

a := []interface{}{-1, "control", 9.3}

data, err := prmt.NewAnySlice(a)
if err != nil {
    log.Fatal(err)
}

p := prmt.New(data)
for p.Next() {
    fmt.Println(a)
}

or use MustAnySlice (panic if error):

a := []int{1, 2}
p := prmt.New(prmt.MustAnySlice(a))
for p.Next() {
    fmt.Println(a)
}

usage permutation.Interface

package main

import (
    "fmt"

    prmt "github.com/gitchander/permutation"
)

type Person struct {
    Name string
    Age  int
}

type PersonSlice []Person

func (ps PersonSlice) Len() int      { return len(ps) }
func (ps PersonSlice) Swap(i, j int) { ps[i], ps[j] = ps[j], ps[i] }

func main() {
    a := []Person{
        {Name: "one", Age: 1},
        {Name: "two", Age: 2},
        {Name: "three", Age: 3},
    }
    p := prmt.New(PersonSlice(a))
    for p.Next() {
        fmt.Println(a)
    }
}

result:

[{one 1} {two 2} {three 3}]
[{two 2} {one 1} {three 3}]
[{three 3} {one 1} {two 2}]
[{one 1} {three 3} {two 2}]
[{two 2} {three 3} {one 1}]
[{three 3} {two 2} {one 1}]