reversesimplecycle!

reverse_simple_cycle!([rng], reservoir_matrix, weight; signs = nothing)

Adds a reverse simple cycle in the reservoir_matrix, with given weight. The weight can be a single number or an array.

Arguments

• rng: Random number generator. Default is Utils.default_rng() from WeightInitializers.
• reservoir_matrix: matrix to be changed.
• weight: weight to add as a simple cycle. Can be either a single number or an array.

Keyword arguments

• signs: Controls sign flips. Use RandomSigns, RegularSigns, or IrrationalDigitSigns. Pass nothing to leave signs unchanged. Default is nothing.

Examples

julia> matrix = zeros(Float32, 5, 5)
5×5 Matrix{Float32}:
 0.0  0.0  0.0  0.0  0.0
 0.0  0.0  0.0  0.0  0.0
 0.0  0.0  0.0  0.0  0.0
 0.0  0.0  0.0  0.0  0.0
 0.0  0.0  0.0  0.0  0.0

julia> reverse_simple_cycle!(matrix, 1.0; signs = RegularSigns())
5×5 Matrix{Float32}:
 0.0  -1.0  0.0   0.0  0.0
 0.0   0.0  1.0   0.0  0.0
 0.0   0.0  0.0  -1.0  0.0
 0.0   0.0  0.0   0.0  1.0
 1.0   0.0  0.0   0.0  0.0