I can create an empty one-dimensional array with a zero-argument constructor: julia> Vector{Float64}() Float64[] But I can’t create an empty multi-dimensional array with a zero-argument constructor: julia> Array{Float64,2}() ERROR: MethodError: no method matching Matrix{Float64}() ... Is there a…

There is a unique empty vector (with a given element type), but there are many different empty n-dimensional arrays for n > 1. E.g. julia> fill(0.0, 0, 1, 2) 0×1×2 Array{Float64, 3} julia> fill(0.0, 2, 1, 0) 2×1×0 Array{Float64, 3} Emptiness is determined by one of the dimensions being zero, but …

Why doesn't multi-dimensional Array have zero-argument constructor?

General Usage

GunnarFarneback August 30, 2023, 5:25pm 8

Well, yes, Array{T, N} for different T and N are all different types, so I’m not sure I see your point.

Topic		Replies	Views
Ndim (>=3) Array constructors without argument does not work General Usage question	4	703	February 27, 2017
Why does Array{Int}() product Array{Int, 0} and not Array{Int, 1} New to Julia	32	1768	June 5, 2018
Is it possible to have an empty array of >2 dims? General Usage question	4	452	July 7, 2020
When I declare an empty array, what does the output given by the typeof method mean? New to Julia	17	5031	May 3, 2021
Multidimensional Arrays Initialization and Assignments New to Julia array	3	542	January 16, 2019

Why doesn't multi-dimensional Array have zero-argument constructor?

Related topics