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) .+ 50

data3 = rand(10, 2) .+ 100

data = vcat(data1, data2, data3)

result = pmedian(data, 3);

println(result.centers)
# 3-element Vector{Int64}:
#  1
# 16
# 21

println(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.