Movatterモバイル変換

pmedian(data, ncenters)

Description

The function calculates Euclidean distances between all possible rows of the matrix data.ncenters locations are then selected that minimizes the total distances to the nearest rows.

Arguments

• data::Matrix: Coordinates of locations
• ncenters::Int: Number of centers

Output

• PMedianResult: PMedianResult object.

Example

data1 = rand(10, 2)data2 = rand(10, 2) .+ 50data3 = rand(10, 2) .+ 100data = vcat(data1, data2, data3)result = pmedian(data, 3);println(result.centers)# 3-element Vector{Int64}:#  1# 16# 21println(result.objective)# 11.531012240599605

pmedian_with_distances(distancematrix, ncenters)

Description

ncenters locations are selected that minimizes the total distances to the nearest rows.

Arguments

• distancematrix::Matrix: n x n matrix of distances
• ncenters::Int: Number of centers

Output

• PMedianResult: PMedianResult object.