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Add Metropolis-Hastings algorithm for Potts modelling

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This commit is contained in:
Dimitri Lozeve 2020-02-18 22:37:32 +01:00
parent 02281c49ee
commit f7f1db9246
3 changed files with 74 additions and 2 deletions
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26
test/runtests.jl
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@ -2,5 +2,29 @@ using GardenOptim
using Test
@testset "GardenOptim.jl" begin
# Write your own tests here.
@testset "swap" begin
grid = ones(Int, 5, 5)
grid[2] = 5
grid[8] = -3
GardenOptim.swap!(grid, 2, 8)
@test grid[2] == -3
@test grid[8] == 5
@test grid[6] == 1
end
@testset "neighbours" begin
grid = ones(Int, 5, 5)
@test length(GardenOptim.neighbours(grid, 4)) == 3
@test length(GardenOptim.neighbours(grid, 5)) == 2
@test length(GardenOptim.neighbours(grid, 8)) == 4
@test length(GardenOptim.neighbours(grid, 25)) == 2
@test GardenOptim.neighbours(grid, 1) == [1, 1]
end
@testset "deltacost" begin
grid = ones(Int, 5, 5)
costs = [[1. 0. 2.]; [0. 1. -1.]; [2. -1. 1.]]
@test GardenOptim.deltacost(grid, costs, 3, 8) == 0
grid[3] = 2
grid[9] = 3
@test GardenOptim.deltacost(grid, costs, 3, 8) != 0
end
end