Is there an equivalent to Python's pop? I have an array x and a boolean array flag of the same length. I would like to extract x[flag] and be able to store it in a variable x_flagged while at the same time remove them in place from x.
x = rand(1:5, 100) flag = x .> 2 x_flagged = some_function!(x, flag) # Now x would be equal to x[x .<= 2] 2 Answers
Try this one using deleteat!
julia> function pop_r!(list, y) t = list[y]; deleteat!( list, y ); t end julia> x = rand(1:5, 100) 100-element Vector{Int64} julia> flag = x .> 2 100-element BitVector julia> pop_r!( x, flag ) 60-element Vector{Int64} julia> x 40-element Vector{Int64} You can use splice! with a bit of help from findall:
julia> x_flagged = splice!(x, findall(flag)) 59-element Vector{Int64}: ... julia> size(x) (41,)
splice!(a::Vector, indices, [replacement]) -> items
Remove items at specified indices, and return a collection containing the removed items.
