I would like to sample rows from a three dimensional array without replacement. For example, if I have x = rand(10, 5, 3) a random set of indices might look like {(2,2), (9,3)}, where the first position is the index of the first dimension and the second position is the index of the third dimension…

Maybe something like: using StatsBase x = rand(10, 5, 3) @views sample(CartesianIndices(x[:,1,:]), 3; replace=false) 3-element Vector{CartesianIndex{2}}: CartesianIndex(1, 3) CartesianIndex(5, 2) CartesianIndex(4, 2)

Sample rows of a 3 dimensional array without replacement

General Usage

Christopher_Fisher November 8, 2021, 12:19am 3

Awesome. Thanks!

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Sample rows of a 3 dimensional array without replacement

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