replace findn(A) with findall(!iszero, A)

[stevengj]

I notice that you are still using findn, which was deprecated in Julia 0.7 and removed in Julia 1.0 (JuliaLang/julia#25532) here:

RealNeuralNetworks.jl/src/NodeNets.jl

Line 670 in 3d66e68

is, js = findn(weights)

RealNeuralNetworks.jl/src/NodeNets.jl

Line 725 in 3d66e68

points = hcat( findn(ones(s,s,s))... );

You probably want to replace this with findall(!iszero, A), noting that findall returns a single array of CartesianIndex rather than two I, J arrays.