RecursiveArrayTools.jl is a set of tools for dealing with recursive arrays like arrays of arrays.
For information on using the package, see the stable documentation. Use the in-development documentation for the version of the documentation, which contains the unreleased features.
using RecursiveArrayTools
a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
b = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
vA = VectorOfArray(a)
vB = VectorOfArray(b)
vA .* vB # Now all standard array stuff works!a = (rand(5), rand(5))
b = (rand(5), rand(5))
pA = ArrayPartition(a)
pB = ArrayPartition(b)
pA .* pB # Now all standard array stuff works!
# or do:
x0 = rand(3, 3)
v0 = rand(3, 3)
a0 = rand(3, 3)
u0 = ArrayPartition(x0, v0, a0)
u0.x[1] == x0 # true
u0 .+= 1
u0.x[2] == v0 # still true
# do some calculations creating a new partitioned array
unew = u0 * 10
# easily access the individual components without having to rely on complicated indexing
xnew, vnew, anew = unew.x