Hi guys, I'm learning the language while implementing an advanced package for geometric and solid modeling. My question is: What is the right idiom (shorter and/or faster) for writing this kind of array indexing:
linesFromLineArray(V,EV) = Any[[V[:,EV[:,k][1]] V[:,EV[:,k][2]] ] for k=1:size(EV,2)] The efficiency is the strongest issue, since this method should provide the indirect indexing for any kind of cellular complexes. Many thanks for your help julia> V,EV ( 2x10 Array{Float64,2}: 0.13611 0.14143 0.38501 0.42103 0.96927 0.90207 0.0 0.11508 0.61437 0.52335 0.59824 0.58921 0.25964 0.24118 0.19741 0.34109 0.0213 0.0 0.05601 0.17309, 2x5 Array{Int64,2}: 1 3 5 7 9 2 4 6 8 10) julia> linesFromLineArray(V,EV) 5-element Array{Any,1}: 2x2 Array{Float64,2}: 0.13611 0.14143 0.59824 0.58921 2x2 Array{Float64,2}: 0.38501 0.42103 0.25964 0.24118 2x2 Array{Float64,2}: 0.96927 0.90207 0.19741 0.34109 2x2 Array{Float64,2}: 0.0 0.11508 0.0213 0.0 2x2 Array{Float64,2}: 0.61437 0.52335 0.05601 0.17309