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new, unified sparsify

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kalmar 2017-07-05 13:14:34 +02:00
parent f3874828e7
commit 760270d2e0
1 changed files with 2 additions and 11 deletions
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13
src/Orbit-wise.jl
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@ -53,11 +53,10 @@ end
include("OrbitDecomposition.jl")
function sparsify{T}(U::Array{T}, eps=eps(T))
n = rank(U)
function sparsify{T}(U::AbstractArray{T}, eps=eps(T), check=true)
W = deepcopy(U)
W[abs.(W) .< eps] = zero(T)
if rank(W) != n
if check && rank(W) != rank(U)
warn("Sparsification would decrease the rank!")
W = U
end
@ -66,14 +65,6 @@ function sparsify{T}(U::Array{T}, eps=eps(T))
return W
end
function sparsify!{T}(U::SparseMatrixCSC{T}, eps=eps(T))
U[abs.(U) .< eps] = zero(T)
dropzeros!(U)
return U
end
sparsify{T}(U::SparseMatrixCSC{T}, eps=eps(T)) = sparsify!(deepcopy(U), eps)
function init_orbit_data(logger, sett::Settings; radius=2)
ex(fname) = isfile(joinpath(sett.name, fname))