Here I define a struct struct Df{T,N} <: AbstractArray{T,N} value::AbstractArray{T,N} end Base.size(df::Df)=size(df.value) Base.getindex(df::Df,i...)=Df(df.value[i...]) Base.getindex(df::Df,i::Union{Int,CartesianIndex}...)=df.value[i...] Base.eachindex(df::Df)=eachindex(df.value) -> df=Df([…

Base operator on custom array

skleinbo June 20, 2022, 5:20am 2

You need to define a few methods for broadcasting. The example at the end of Interfaces · The Julia Language is ver close to what you want.

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