random number generation

[Michela Di Lullo]

How can I do to generate 6 different integer random numbers between 1 and 14?

Thanks in advance to who will answer, 

M.

[El suisse]

I think like this:

`rand(1:14, 6)`

___________________________________________

INVESTI SUL FUTURO, FAI CRESCERE L’UNIVERSITÀ:

DONA IL 5 PER MILLE ALLA SAPIENZA

CODICE FISCALE 80209930587

[Michele Zaffalon]

shuffle(collect(1:14))[1:6] but I remember seeing a method that picks n random elements from an array.

By the way, shuffle(1:14) does not seem to work.

[cdm]

a solution, among many:

sub(randperm(14), 1:6)

enjoy !!!

[cdm]

this method does not exclude the possibility that the same integer turns up more than once among the six ...

julia> rand(1:14, 6)                                                                                                                                             

6-element Array{Int64,1}:

 9

 2

 7

 6

 6

 3

[David P. Sanders]

El miércoles, 1 de junio de 2016, 14:24:01 (UTC-4), Michela Di Lullo escribió:

How can I do to generate 6 different integer random numbers between 1 and 14?

This is known as "sampling without replacement" and is implemented in StatsBase.jl; documentation here:

http://statsbasejl.readthedocs.io/en/latest/sampling.html

Code:

julia> using StatsBase

julia> sample(1:14, 6, replace=false)

6-element Array{Int64,1}:

 10

  1

  8

  5

  6

 13