Julia interface about somoclu

[peterwittek]

According to this issue, there is a hope that when Julia 0.5 is out, Cxx.jl can be installed as a normal package. This release is due at the end of July, so I can look into this in August.

[peterwittek]

The Julia interface was migrated to a separate repo to comply with Julia package distribution methods. In principle, it works.

[peterwittek]

The main C++ interface, Cxx,jl, still requires a development version and the source code of Julia to work, so it is better to wait until this interface matures.

[psilva07]

+1 for this!

[peterwittek]

An extremely rudimentary version of the interface is now available by commit ba2ec3b. The following code works, albeit it is not particularly useful:

import Somoclu.train

nSomX, nSomY = 40, 20
nDimensions, nVectors = 3, 20
data = Array{Float32}(nVectors*nDimensions)
codebook = Array{Float32}(nSomX*nSomY*nDimensions)
bmus = Array{Cint}(nVectors*2)
uMatrix = Array{Float32}(nSomX*nSomY)

train(data, codebook, bmus, uMatrix, nDimensions, nVectors, nSomX, nSomY)

Build it by

./configure --without-cuda --without-mpi
make julia

I hope to get it in shape by the end of the month.