julialangHow to reshape arrays in JuliaLang?

JuliaLang provides a variety of functions to reshape arrays. The most commonly used functions are reshape() and permutedims().

reshape() is used to change the shape of an array without changing its data. For example,

julia> a = [1 2 3 4 5 6]
julia> reshape(a, 3, 2)
3×2 Array{Int64,2}:
 1  4
 2  5
 3  6

permutedims() is used to rearrange the order of the dimensions of an array. For example,

julia> a = reshape(1:24, 4, 3, 2)
julia> permutedims(a, (3, 2, 1))
2×3×4 Array{Int64,3}:
[:, :, 1] =
 1  5   9
 2  6  10

[:, :, 2] =
 3  7  11
 4  8  12

[:, :, 3] =
13 17  21
14 18  22

[:, :, 4] =
15 19  23
16 20  24

The following are the parts of the code and their explanation:

• a = [1 2 3 4 5 6]: This creates an array a with 6 elements.
• reshape(a, 3, 2): This reshapes the array a into a 3x2 array.
• a = reshape(1:24, 4, 3, 2): This creates an array a with 24 elements and reshapes it into a 4x3x2 array.
• permutedims(a, (3, 2, 1)): This rearranges the order of the dimensions of the array a to 3x2x1.

Helpful links

• JuliaLang Documentation - Reshaping Arrays

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