Sha256: 7cbd80a76fa581d1b48e8c7438a909cb9db32e3f4ed36a77cd600f575c12f074
Contents?: true
Size: 726 Bytes
Versions: 22
Compression:
Stored size: 726 Bytes
Contents
require_relative '../../lib/everyday-cli-utils'
include EverydayCliUtils
import :kmeans
describe EverydayCliUtils::Kmeans do
it 'finds the right clusters in simple data' do
arr = [100, 200, 99, 400, 98, 201, 101, 405, 102]
nmeans = arr.nmeans
nmeans.count.should eq 3
nmeans.should eq [100, 200.5, 402.5]
end
it 'limits number of clusters found' do
arr = (1..50).to_a.map { |v| (v * (101-v)) ** 2 }
nmeans = arr.nmeans(5)
nmeans.count.should eq 5
nmeans = arr.nmeans(3)
nmeans.count.should eq 3
end
it 'finds outliers in simple data' do
arr = [100, 200, 99, 400, 98, 201, 101, 405, 102]
outliers = arr.outliers
outliers.should eq [400.0, 405.0]
end
end
Version data entries
22 entries across 22 versions & 1 rubygems