Image credit: "xkcd: Donald Knuth" (CC-BY-NC 2.5)
RandomBasedArrays.jl is a hassle-free package in the Julia programming
language for dealing with arrays: every time you access an element of an array,
the first index is random, so you don’t have to remember whether Julia uses 0-
or 1-based indexing: you simply cannot ever know what the initial element will
be.
The latest version of RandomBasedArrays.jl is available for Julia v1.0 and
later releases, and can be installed with Julia built-in package
manager. In a Julia session, after
entering the package manager mode with ], run the command
pkg> add RandomBasedArraysjulia> using RandomBasedArrays
julia> A = RandomBasedArray(reshape(collect(1:25), 5, 5))
5×5 Array{Int64,2}:
15 7 4 2 6
7 10 10 9 18
8 7 16 6 13
2 21 17 13 2
22 6 18 19 20
julia> A
5×5 Array{Int64,2}:
15 3 6 12 8
20 3 6 22 7
22 2 20 15 7
18 22 16 1 3
1 5 6 6 13
julia> A
5×5 Array{Int64,2}:
8 14 2 18 1
7 17 8 19 4
25 17 15 8 15
6 19 10 23 23
7 8 1 22 25
julia> A[-35]
6
julia> A[-35]
9
julia> A[-35]
4
julia> A[28,-19] = 42
42
julia> A
5×5 Array{Int64,2}:
13 16 3 25 9
23 20 16 18 1
5 17 21 6 8
5 3 42 10 13
25 6 23 4 11
julia> A
5×5 Array{Int64,2}:
9 25 25 3 3
4 14 9 7 18
22 14 13 21 2
11 12 19 14 19
19 2 21 2 21
julia> A
5×5 Array{Int64,2}:
14 42 21 21 25
14 8 24 13 17
6 4 23 12 4
12 6 19 11 8
6 12 2 18 3OffsetArrays.jl: Fortran-like arrays with arbitrary, zero or negative starting indicesTwoBasedIndexing.jl: Two-based indexing
The RandomBasedArrays.jl package is licensed under the MIT "Expat" License.
The original author is Mosè Giordano.