950-RandomHelpers.md

QuickData.Core.FSharp

RandomHelpers

This module provides various random number functions which might be useful.

• The RandomHelpers Module
  • Code Examples
• Issues, Questions, and Suggestions

The RandomHelpers Module

The RandomHelpers module provides functions for working with random numbers.

These functions are:

• nextSingleInRange : Returns a single within the range provided;
• nextFloatInRange : Returns a float within the range provided.

Note: These functions will never return the actual high value of the range provided, but that won't usually be a problem.

Code Examples

let rng = System.Random 1389 // Randomly-chosen seed.

let nextSingle = RandomHelpers.nextSingleInRange 10.0f 20.0f 

let randomSingles = 
    [ 1..5 ] 
    |> List.map (fun _ -> rng |> nextSingle) 
    // e.g. [ 13.75004673f; 13.75785255f; 16.62341499f; 10.30391788f; 13.19725704f ]

let nextFloat = RandomHelpers.nextFloatInRange 20 30 

let randomFloats = 
    [ 1..5 ] 
    |> List.map (fun _ -> rng |> nextFloat) 
    // e.g. [ 24.02938277; 22.56780016; 22.81813383; 28.20046628; 24.68979083 ]

Issues, Questions, and Suggestions

You can visit the QuickData.FSharp GitHub repository to report issues, ask questions, or make suggestions. You can also read about the changes across different versions in the release notes there.