22 people like it.

Seq.unsort

Randomizes order of specified sequence

1: 
2: 
3: 
4: 
5: 
6: 
7: 
8: 
module Seq =
    let unsort xs =
        let rand = System.Random(Seed=0)
        xs
        |> Seq.map (fun x -> rand.Next(),x)
        |> Seq.cache
        |> Seq.sortBy fst
        |> Seq.map snd
module Seq

from Microsoft.FSharp.Collections
val unsort : xs:seq<'a> -> seq<'a>

Full name: Script.Seq.unsort
val xs : seq<'a>
val rand : System.Random
namespace System
Multiple items
type Random =
  new : unit -> Random + 1 overload
  member Next : unit -> int + 2 overloads
  member NextBytes : buffer:byte[] -> unit
  member NextDouble : unit -> float

Full name: System.Random

--------------------
System.Random() : unit
System.Random(Seed: int) : unit
val map : mapping:('T -> 'U) -> source:seq<'T> -> seq<'U>

Full name: Microsoft.FSharp.Collections.Seq.map
val x : 'a
System.Random.Next() : int
System.Random.Next(maxValue: int) : int
System.Random.Next(minValue: int, maxValue: int) : int
val cache : source:seq<'T> -> seq<'T>

Full name: Microsoft.FSharp.Collections.Seq.cache
val sortBy : projection:('T -> 'Key) -> source:seq<'T> -> seq<'T> (requires comparison)

Full name: Microsoft.FSharp.Collections.Seq.sortBy
val fst : tuple:('T1 * 'T2) -> 'T1

Full name: Microsoft.FSharp.Core.Operators.fst
val snd : tuple:('T1 * 'T2) -> 'T2

Full name: Microsoft.FSharp.Core.Operators.snd
Raw view New version

More information

Link:http://fssnip.net/2n
Posted:6 years ago
Author:Phillip Trelford
Tags: seq