hvcat
hvcat(rows::Tuple{Vararg{Int}}, values...)
Horizontal and vertical concatenation in one call. This function is called for block matrix syntax. The first argument specifies the number of arguments to concatenate in each block row.
julia> a, b, c, d, e, f = 1, 2, 3, 4, 5, 6
(1,2,3,4,5,6)
julia> [a b c; d e f]
2x3 Array{Int64,2}:
1 2 3
4 5 6
julia> hvcat((3,3), a,b,c,d,e,f)
2x3 Array{Int64,2}:
1 2 3
4 5 6
julia> [a b;c d; e f]
3x2 Array{Int64,2}:
1 2
3 4
5 6
julia> hvcat((2,2,2), a,b,c,d,e,f)
3x2 Array{Int64,2}:
1 2
3 4
5 6If the first argument is a single integer n, then all block rows are assumed to have n block columns.
Examples
julia> foo = Array(Int8,2,2)
2x2 Array{Int8,2}:
-4 -1
-1 -1
julia> bar = Array(Int8,2,2)
2x2 Array{Int8,2}:
-8 124
-117 8
julia> baz = Array(Int8,2,4)
2x4 Array{Int8,2}:
0 0 0 0
0 0 0 0
julia> hvcat((2,1), foo, bar, baz) # equivalent to [foo bar; baz]
4x4 Array{Int8,2}:
-4 -1 -8 124
-1 -1 -117 8
0 0 0 0
0 0 0 0See Also
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