I am looking at a code of an early version of Julia and there is this function, bin2() that I don’t know what is it for specially I can’t see the output how can I write in Julia 1.5 ?

The fastest/simplest solution I found is: julia> using Tullio julia> x = [i*4 + j for i=0:3, j=1:4] 4×4 Matrix{Int64}: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 julia> bin2(x) = @tullio res[i,j] := x[2i,2j] + x[2i,2j-1] + x[2i-1, 2j] + x[2i-1, 2j-1] bin2 (generic function w…

The bin2 function

General Usage

rafael.guerra November 1, 2021, 3:50pm 4

Binning of a 2D array as in this post?

(similar purpose bin2() in R-documentation)

1 Like

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The bin2 function

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