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RandomDevice

RandomDevice()

Create a RandomDevice RNG object. Two such objects will always generate different streams of random numbers.

Examples

1. Create a RandomDevice object:

   julia> rng = RandomDevice()
   RandomDevice()
   
   julia> rand(rng, 3)
   3-element Array{Float64,1}:
   0.8001107062114954
   0.4821127743457391
   0.6071435902237073

   This example creates a RandomDevice object named rng. You can then use the rng object to generate random numbers using the rand function.

2. Generate random integers using RandomDevice:

   julia> rng = RandomDevice()
   RandomDevice()
   
   julia> rand(rng, 1:10, 5)
   5-element Array{Int64,1}:
   5
   8
   3
   3
   2

   Here, the rand function is used with the RandomDevice object rng to generate an array of 5 random integers between 1 and 10 (inclusive).

3. Generate a random permutation using RandomDevice:

   julia> rng = RandomDevice()
   RandomDevice()
   
   julia> randperm(rng, 5)
   5-element Array{Int64,1}:
   2
   5
   3
   1
   4

   In this example, the randperm function is used with the RandomDevice object rng to generate a random permutation of the numbers from 1 to 5.

Common mistake example:

julia> rng = RandomDevice
ERROR: MethodError: no method matching RandomDevice()

In this example, the mistake made is not calling the RandomDevice constructor with parentheses. It is important to use RandomDevice() to create a RandomDevice object, not just RandomDevice.

See Also

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