CODEWITHSUNDEEP
type-conversionjuliacombinatorics
djourd1
djourd1

Reputation: 479

How to convert results from Combinatorics

Using Julia 1.0.1, I want to obtain a vector of all combinations of 5 objects, the objects being the [1,2], and each of the number 3,4,5 and 6

I have created an object a = [[1,2],3,4,5,6] and obtained the combinations. 

using Combinatorics
a  = [[1,2],3,4,5,6]
anas5 = collect(combinations(a))

As expected, I am obtaining 

31-element Array{Array{Any,1},1}:

 [[1, 2]]            
 [3]                 
 [4]                 
 [5]                 
 [6]                 
 [[1, 2], 3] 
...

How can I transform the results so that the combinations including [1, 2] become a vector. For example, so the first few lines described above become:

 [1, 2]            
 [3]                 
 [4]                 
 [5]                 
 [6]                 
 [1, 2, 3] 
...

Thank you

Upvotes: 1

Views: 50

Answers (1)

dberge
dberge

Reputation: 331

You can use Iterators.flatten to flatten your Vector of Vectors.

collect.(Iterators.flatten.(anas5))

Upvotes: 2

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