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generic create_product_matrix function

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kalmar 2017-02-11 13:33:35 +01:00
parent 9c10c2da76
commit 7f707e60a0
1 changed files with 5 additions and 13 deletions
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18
property(T).jl
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@ -12,26 +12,18 @@ function products{T}(U::AbstractVector{T}, V::AbstractVector{T})
return unique(result)
end
function create_product_matrix(basis::Array{Array{Float64,2},1}, limit)
function create_product_matrix(basis, limit)
product_matrix = zeros(Int, (limit,limit))
constraints = [Array{Int,1}[] for x in 1:length(basis)]
for i in 1:limit
x_inv = inv(basis[i])
# info("$i of $limit")
x_inv::eltype(basis) = inv(basis[i])
for j in 1:limit
w = x_inv*basis[j]
index = findfirst(basis, w)
if 0 < index ≤ limit
product_matrix[i,j] = index
push!(constraints[index],[i,j])
end
index ≠ 0 || throw(ArgumentError("Product is not supported on basis: $w"))
product_matrix[i,j] = index
end
end
return product_matrix, constraints
return product_matrix
end
function constraints_from_pm(pm, total_length=maximum(pm))