diff --git a/.vscode/launch.json b/.vscode/launch.json new file mode 100644 index 0000000..181a722 --- /dev/null +++ b/.vscode/launch.json @@ -0,0 +1,26 @@ +{ + "version": "0.2.0", + "configurations": [ + { + // Use IntelliSense to find out which attributes exist for C# debugging + // Use hover for the description of the existing attributes + // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md + "name": ".NET Core Launch (console)", + "type": "coreclr", + "request": "launch", + "preLaunchTask": "build", + // If you have changed target frameworks, make sure to update the program path. + "program": "${workspaceFolder}/src/bin/Debug/net6.0/kMeans.dll", + "args": [], + "cwd": "${workspaceFolder}/src", + // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console + "console": "internalConsole", + "stopAtEntry": false + }, + { + "name": ".NET Core Attach", + "type": "coreclr", + "request": "attach" + } + ] +} \ No newline at end of file diff --git a/.vscode/tasks.json b/.vscode/tasks.json new file mode 100644 index 0000000..d667bf6 --- /dev/null +++ b/.vscode/tasks.json @@ -0,0 +1,42 @@ +{ + "version": "2.0.0", + "tasks": [ + { + "label": "build", + "command": "dotnet", + "type": "process", + "args": [ + "build", + "${workspaceFolder}/src/kMeans.csproj", + "/property:GenerateFullPaths=true", + "/consoleloggerparameters:NoSummary" + ], + "problemMatcher": "$msCompile" + }, + { + "label": "publish", + "command": "dotnet", + "type": "process", + "args": [ + "publish", + "${workspaceFolder}/src/kMeans.csproj", + "/property:GenerateFullPaths=true", + "/consoleloggerparameters:NoSummary" + ], + "problemMatcher": "$msCompile" + }, + { + "label": "watch", + "command": "dotnet", + "type": "process", + "args": [ + "watch", + "run", + "${workspaceFolder}/src/kMeans.csproj", + "/property:GenerateFullPaths=true", + "/consoleloggerparameters:NoSummary" + ], + "problemMatcher": "$msCompile" + } + ] +} \ No newline at end of file diff --git a/KMeansBase/KMeans.cs b/KMeansBase/KMeans.cs new file mode 100644 index 0000000..0087ca8 --- /dev/null +++ b/KMeansBase/KMeans.cs @@ -0,0 +1,82 @@ +namespace KMeansBase; + +public static class KMeans +{ + private const int MaxLoops = 30; + + public static void KMeansCalculation(IReadOnlyCollection points, int k, out IReadOnlyCollection centroids) + { + centroids = InitializeRandomCentroids(points, k).ToArray(); + + for (var i = 0; i < MaxLoops; i++) + { + AssignPointsToCentroids(points, centroids); + if (!UpdateCentroids(points, centroids)) break; + } + } + + private static bool UpdateCentroids(IReadOnlyCollection points, IEnumerable centroids) + { + // calculate mean of all points of one cluster. + var updated = false; + foreach (var centroid in centroids) + { + updated |= UpdateClusterCentroid(centroid, points); + } + + return updated; + } + + private static bool UpdateClusterCentroid(Point centroid, IEnumerable points) + { + var pointsOfCluster = points.Where(p => p.ClusterId == centroid.ClusterId).ToArray(); + var sumX = pointsOfCluster.Sum(p => p.X); + var meanX = sumX / pointsOfCluster.Length; + var sumY = pointsOfCluster.Sum(p => p.Y); + var meanY = sumY / pointsOfCluster.Length; + + return centroid.SetCoordinates(meanX, meanY); + } + + private static void AssignPointsToCentroids(IEnumerable points, IReadOnlyCollection centroids) + { + foreach (var point in points) + { + var id = 0; + var distance = double.MaxValue; + foreach (var centroid in centroids) + { + // calculate euclid distance and assign id. + var currentDistance = Distance(centroid, point); + if (currentDistance > distance) continue; + distance = currentDistance; + id = centroid.ClusterId; + } + + point.ClusterId = id; + } + } + + private static double Distance(Point centroid, Point point) + { + return Math.Sqrt(Math.Pow(centroid.X - point.X, 2) + Math.Pow(centroid.Y - point.Y, 2)); + } + + private static IEnumerable InitializeRandomCentroids(IReadOnlyCollection points, int k) + { + var minX = points.Min(p => p.X); + var maxX = points.Max(p => p.X); + var minY = points.Min(p => p.Y); + var maxY = points.Max(p => p.Y); + var rnd = new Random(); + + for (var i = 0; i < k; i++) + { + var x = (minX + maxX) * rnd.NextDouble(); + var y = (minY + maxY) * rnd.NextDouble(); + var point = new Point(x, y, i); + Console.WriteLine(point); + yield return point; + } + } +} \ No newline at end of file diff --git a/KMeansBase/KMeansBase.csproj b/KMeansBase/KMeansBase.csproj new file mode 100644 index 0000000..eb2460e --- /dev/null +++ b/KMeansBase/KMeansBase.csproj @@ -0,0 +1,9 @@ + + + + net6.0 + enable + enable + + + diff --git a/src/Point.cs b/KMeansBase/Point.cs similarity index 94% rename from src/Point.cs rename to KMeansBase/Point.cs index 565c0c9..4891236 100644 --- a/src/Point.cs +++ b/KMeansBase/Point.cs @@ -1,4 +1,4 @@ -namespace kMeans; +namespace KMeansBase; public record Point(double X, double Y, int ClusterId) { diff --git a/KMeansGui/.gitignore b/KMeansGui/.gitignore new file mode 100644 index 0000000..8afdcb6 --- /dev/null +++ b/KMeansGui/.gitignore @@ -0,0 +1,454 @@ +## Ignore Visual Studio temporary files, build results, and +## files generated by popular Visual Studio add-ons. +## +## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore + +# User-specific files +*.rsuser +*.suo +*.user +*.userosscache +*.sln.docstates + +# User-specific files (MonoDevelop/Xamarin Studio) +*.userprefs + +# Mono auto generated files +mono_crash.* + +# Build results +[Dd]ebug/ +[Dd]ebugPublic/ +[Rr]elease/ +[Rr]eleases/ +x64/ +x86/ +[Ww][Ii][Nn]32/ +[Aa][Rr][Mm]/ +[Aa][Rr][Mm]64/ +bld/ +[Bb]in/ +[Oo]bj/ +[Ll]og/ +[Ll]ogs/ + +# Visual Studio 2015/2017 cache/options directory +.vs/ +# Uncomment if you have tasks that create the project's static files in wwwroot +#wwwroot/ + +# Visual Studio 2017 auto generated files +Generated\ Files/ + +# MSTest test Results +[Tt]est[Rr]esult*/ +[Bb]uild[Ll]og.* + +# NUnit +*.VisualState.xml +TestResult.xml +nunit-*.xml + +# Build Results of an ATL Project +[Dd]ebugPS/ +[Rr]eleasePS/ +dlldata.c + +# Benchmark Results +BenchmarkDotNet.Artifacts/ + +# .NET Core +project.lock.json +project.fragment.lock.json +artifacts/ + +# Tye +.tye/ + +# ASP.NET Scaffolding +ScaffoldingReadMe.txt + +# StyleCop +StyleCopReport.xml + +# Files built by Visual Studio +*_i.c +*_p.c +*_h.h +*.ilk +*.meta +*.obj +*.iobj +*.pch +*.pdb +*.ipdb +*.pgc +*.pgd +*.rsp +*.sbr +*.tlb +*.tli +*.tlh +*.tmp +*.tmp_proj +*_wpftmp.csproj +*.log +*.vspscc +*.vssscc +.builds +*.pidb +*.svclog +*.scc + +# Chutzpah Test files +_Chutzpah* + +# Visual C++ cache files +ipch/ +*.aps +*.ncb +*.opendb +*.opensdf +*.sdf +*.cachefile +*.VC.db +*.VC.VC.opendb + +# Visual Studio profiler +*.psess +*.vsp +*.vspx +*.sap + +# Visual Studio Trace Files +*.e2e + +# TFS 2012 Local Workspace +$tf/ + +# Guidance Automation Toolkit +*.gpState + +# ReSharper is a .NET coding add-in +_ReSharper*/ +*.[Rr]e[Ss]harper +*.DotSettings.user + +# TeamCity is a build add-in +_TeamCity* + +# DotCover is a Code Coverage Tool +*.dotCover + +# AxoCover is a Code Coverage Tool +.axoCover/* +!.axoCover/settings.json + +# Coverlet is a free, cross platform Code Coverage Tool +coverage*.json +coverage*.xml +coverage*.info + +# Visual Studio code coverage results +*.coverage +*.coveragexml + +# NCrunch +_NCrunch_* +.*crunch*.local.xml +nCrunchTemp_* + +# MightyMoose +*.mm.* +AutoTest.Net/ + +# Web workbench (sass) +.sass-cache/ + +# Installshield output folder +[Ee]xpress/ + +# DocProject is a documentation generator add-in +DocProject/buildhelp/ +DocProject/Help/*.HxT +DocProject/Help/*.HxC +DocProject/Help/*.hhc +DocProject/Help/*.hhk +DocProject/Help/*.hhp +DocProject/Help/Html2 +DocProject/Help/html + +# Click-Once directory +publish/ + +# Publish Web Output +*.[Pp]ublish.xml +*.azurePubxml +# Note: Comment the next line if you want to checkin your web deploy settings, +# but database connection strings (with potential passwords) will be unencrypted +*.pubxml +*.publishproj + +# Microsoft Azure Web App publish settings. Comment the next line if you want to +# checkin your Azure Web App publish settings, but sensitive information contained +# in these scripts will be unencrypted +PublishScripts/ + +# NuGet Packages +*.nupkg +# NuGet Symbol Packages +*.snupkg +# The packages folder can be ignored because of Package Restore +**/[Pp]ackages/* +# except build/, which is used as an MSBuild target. +!**/[Pp]ackages/build/ +# Uncomment if necessary however generally it will be regenerated when needed +#!**/[Pp]ackages/repositories.config +# NuGet v3's project.json files produces more ignorable files +*.nuget.props +*.nuget.targets + +# Microsoft Azure Build Output +csx/ +*.build.csdef + +# Microsoft Azure Emulator +ecf/ +rcf/ + +# Windows Store app package directories and files +AppPackages/ +BundleArtifacts/ +Package.StoreAssociation.xml +_pkginfo.txt +*.appx +*.appxbundle +*.appxupload + +# Visual Studio cache files +# files ending in .cache can be ignored +*.[Cc]ache +# but keep track of directories ending in .cache +!?*.[Cc]ache/ + +# Others +ClientBin/ +~$* +*~ +*.dbmdl +*.dbproj.schemaview +*.jfm +*.pfx +*.publishsettings +orleans.codegen.cs + +# Including strong name files can present a security risk +# (https://github.com/github/gitignore/pull/2483#issue-259490424) +#*.snk + +# Since there are multiple workflows, uncomment next line to ignore bower_components +# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) +#bower_components/ + +# RIA/Silverlight projects +Generated_Code/ + +# Backup & report files from converting an old project file +# to a newer Visual Studio version. Backup files are not needed, +# because we have git ;-) +_UpgradeReport_Files/ +Backup*/ +UpgradeLog*.XML +UpgradeLog*.htm +ServiceFabricBackup/ +*.rptproj.bak + +# SQL Server files +*.mdf +*.ldf +*.ndf + +# Business Intelligence projects +*.rdl.data +*.bim.layout +*.bim_*.settings +*.rptproj.rsuser +*- [Bb]ackup.rdl +*- [Bb]ackup ([0-9]).rdl +*- [Bb]ackup ([0-9][0-9]).rdl + +# Microsoft Fakes +FakesAssemblies/ + +# GhostDoc plugin setting file +*.GhostDoc.xml + +# Node.js Tools for Visual Studio +.ntvs_analysis.dat +node_modules/ + +# Visual Studio 6 build log +*.plg + +# Visual Studio 6 workspace options file +*.opt + +# Visual Studio 6 auto-generated workspace file (contains which files were open etc.) +*.vbw + +# Visual Studio LightSwitch build output +**/*.HTMLClient/GeneratedArtifacts +**/*.DesktopClient/GeneratedArtifacts +**/*.DesktopClient/ModelManifest.xml +**/*.Server/GeneratedArtifacts +**/*.Server/ModelManifest.xml +_Pvt_Extensions + +# Paket dependency manager +.paket/paket.exe +paket-files/ + +# FAKE - F# Make +.fake/ + +# CodeRush personal settings +.cr/personal + +# Python Tools for Visual Studio (PTVS) +__pycache__/ +*.pyc + +# Cake - Uncomment if you are using it +# tools/** +# !tools/packages.config + +# Tabs Studio +*.tss + +# Telerik's JustMock configuration file +*.jmconfig + +# BizTalk build output +*.btp.cs +*.btm.cs +*.odx.cs +*.xsd.cs + +# OpenCover UI analysis results +OpenCover/ + +# Azure Stream Analytics local run output +ASALocalRun/ + +# MSBuild Binary and Structured Log +*.binlog + +# NVidia Nsight GPU debugger configuration file +*.nvuser + +# MFractors (Xamarin productivity tool) working folder +.mfractor/ + +# Local History for Visual Studio +.localhistory/ + +# BeatPulse healthcheck temp database +healthchecksdb + +# Backup folder for Package Reference Convert tool in Visual Studio 2017 +MigrationBackup/ + +# Ionide (cross platform F# VS Code tools) working folder +.ionide/ + +# Fody - auto-generated XML schema +FodyWeavers.xsd + +## +## Visual studio for Mac +## + + +# globs +Makefile.in +*.userprefs +*.usertasks +config.make +config.status +aclocal.m4 +install-sh +autom4te.cache/ +*.tar.gz +tarballs/ +test-results/ + +# Mac bundle stuff +*.dmg +*.app + +# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore +# General +.DS_Store +.AppleDouble +.LSOverride + +# Icon must end with two \r +Icon + + +# Thumbnails +._* + +# Files that might appear in the root of a volume +.DocumentRevisions-V100 +.fseventsd +.Spotlight-V100 +.TemporaryItems +.Trashes +.VolumeIcon.icns +.com.apple.timemachine.donotpresent + +# Directories potentially created on remote AFP share +.AppleDB +.AppleDesktop +Network Trash Folder +Temporary Items +.apdisk + +# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore +# Windows thumbnail cache files +Thumbs.db +ehthumbs.db +ehthumbs_vista.db + +# Dump file +*.stackdump + +# Folder config file +[Dd]esktop.ini + +# Recycle Bin used on file shares +$RECYCLE.BIN/ + +# Windows Installer files +*.cab +*.msi +*.msix +*.msm +*.msp + +# Windows shortcuts +*.lnk + +# JetBrains Rider +.idea/ +*.sln.iml + +## +## Visual Studio Code +## +.vscode/* +!.vscode/settings.json +!.vscode/tasks.json +!.vscode/launch.json +!.vscode/extensions.json diff --git a/KMeansGui/App.axaml b/KMeansGui/App.axaml new file mode 100644 index 0000000..3a599b2 --- /dev/null +++ b/KMeansGui/App.axaml @@ -0,0 +1,7 @@ + + + + + diff --git a/KMeansGui/App.axaml.cs b/KMeansGui/App.axaml.cs new file mode 100644 index 0000000..c3098be --- /dev/null +++ b/KMeansGui/App.axaml.cs @@ -0,0 +1,24 @@ +using Avalonia; +using Avalonia.Controls.ApplicationLifetimes; +using Avalonia.Markup.Xaml; + +namespace KMeansGui +{ + public class App : Application + { + public override void Initialize() + { + AvaloniaXamlLoader.Load(this); + } + + public override void OnFrameworkInitializationCompleted() + { + if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) + { + desktop.MainWindow = new ShellView(); + } + + base.OnFrameworkInitializationCompleted(); + } + } +} \ No newline at end of file diff --git a/KMeansGui/KMeansGui.csproj b/KMeansGui/KMeansGui.csproj new file mode 100644 index 0000000..07e2ddb --- /dev/null +++ b/KMeansGui/KMeansGui.csproj @@ -0,0 +1,25 @@ + + + WinExe + net5.0 + enable + + + + + + + + + + + + + + + + + ShellView.axaml + + + diff --git a/KMeansGui/KMeansGui.csproj.DotSettings b/KMeansGui/KMeansGui.csproj.DotSettings new file mode 100644 index 0000000..ca23724 --- /dev/null +++ b/KMeansGui/KMeansGui.csproj.DotSettings @@ -0,0 +1,2 @@ + + True \ No newline at end of file diff --git a/KMeansGui/Program.cs b/KMeansGui/Program.cs new file mode 100644 index 0000000..a18b1c3 --- /dev/null +++ b/KMeansGui/Program.cs @@ -0,0 +1,23 @@ +using System; +using Avalonia; +using Avalonia.Controls; +using Avalonia.Controls.ApplicationLifetimes; + +namespace KMeansGui +{ + class Program + { + // Initialization code. Don't use any Avalonia, third-party APIs or any + // SynchronizationContext-reliant code before AppMain is called: things aren't initialized + // yet and stuff might break. + [STAThread] + public static int Main(string[] args) => BuildAvaloniaApp() + .StartWithClassicDesktopLifetime(args); + + // Avalonia configuration, don't remove; also used by visual designer. + public static AppBuilder BuildAvaloniaApp() + => AppBuilder.Configure() + .UsePlatformDetect() + .LogToTrace(); + } +} \ No newline at end of file diff --git a/KMeansGui/Shell/ShellView.axaml b/KMeansGui/Shell/ShellView.axaml new file mode 100644 index 0000000..b97ac4d --- /dev/null +++ b/KMeansGui/Shell/ShellView.axaml @@ -0,0 +1,15 @@ + + + + + + + + diff --git a/KMeansGui/Shell/ShellView.axaml.cs b/KMeansGui/Shell/ShellView.axaml.cs new file mode 100644 index 0000000..28f6489 --- /dev/null +++ b/KMeansGui/Shell/ShellView.axaml.cs @@ -0,0 +1,22 @@ +using Avalonia; +using Avalonia.Controls; +using Avalonia.Markup.Xaml; + +namespace KMeansGui +{ + public partial class ShellView : Window + { + public ShellView() + { + InitializeComponent(); +#if DEBUG + this.AttachDevTools(); +#endif + } + + private void InitializeComponent() + { + AvaloniaXamlLoader.Load(this); + } + } +} \ No newline at end of file diff --git a/KMeansGui/Shell/ShellViewModel.cs b/KMeansGui/Shell/ShellViewModel.cs new file mode 100644 index 0000000..bc9ca4b --- /dev/null +++ b/KMeansGui/Shell/ShellViewModel.cs @@ -0,0 +1,21 @@ +using System.Threading.Tasks; +using Avalonia.Controls; +using MvvmGen; + +namespace KMeansGui +{ + [ViewModel] + public partial class ShellViewModel + { + + + public async Task OpenCsvFileAsync(object parent) + { + if (parent is Window window) + { + var fileDialog = new OpenFileDialog(); + var result = await fileDialog.ShowAsync(window); + } + } + } +} \ No newline at end of file diff --git a/kMeans.sln b/kMeans.sln index 338538a..d37d5b7 100644 --- a/kMeans.sln +++ b/kMeans.sln @@ -3,7 +3,11 @@ Microsoft Visual Studio Solution File, Format Version 12.00 # Visual Studio Version 16 VisualStudioVersion = 16.0.30114.105 MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "kMeans", "src\kMeans.csproj", "{A3FF7F67-3AE0-4CC3-AF1A-FFF7BBD7D53F}" +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "kMeansConsole", "src\kMeansConsole.csproj", "{A3FF7F67-3AE0-4CC3-AF1A-FFF7BBD7D53F}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KMeansGui", "KMeansGui\KMeansGui.csproj", "{A32A85C2-F9E7-4F8E-BECA-B98385F9E19C}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KMeansBase", "KMeansBase\KMeansBase.csproj", "{E6C57C6B-38CC-49C3-B77C-5AB4FCEAEA88}" EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution @@ -18,5 +22,13 @@ Global {A3FF7F67-3AE0-4CC3-AF1A-FFF7BBD7D53F}.Debug|Any CPU.Build.0 = Debug|Any CPU {A3FF7F67-3AE0-4CC3-AF1A-FFF7BBD7D53F}.Release|Any CPU.ActiveCfg = Release|Any CPU {A3FF7F67-3AE0-4CC3-AF1A-FFF7BBD7D53F}.Release|Any CPU.Build.0 = Release|Any CPU + {A32A85C2-F9E7-4F8E-BECA-B98385F9E19C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {A32A85C2-F9E7-4F8E-BECA-B98385F9E19C}.Debug|Any CPU.Build.0 = Debug|Any CPU + {A32A85C2-F9E7-4F8E-BECA-B98385F9E19C}.Release|Any CPU.ActiveCfg = Release|Any CPU + {A32A85C2-F9E7-4F8E-BECA-B98385F9E19C}.Release|Any CPU.Build.0 = Release|Any CPU + {E6C57C6B-38CC-49C3-B77C-5AB4FCEAEA88}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {E6C57C6B-38CC-49C3-B77C-5AB4FCEAEA88}.Debug|Any CPU.Build.0 = Debug|Any CPU + {E6C57C6B-38CC-49C3-B77C-5AB4FCEAEA88}.Release|Any CPU.ActiveCfg = Release|Any CPU + {E6C57C6B-38CC-49C3-B77C-5AB4FCEAEA88}.Release|Any CPU.Build.0 = Release|Any CPU EndGlobalSection EndGlobal diff --git a/kMeans.sln.DotSettings b/kMeans.sln.DotSettings new file mode 100644 index 0000000..c3ce823 --- /dev/null +++ b/kMeans.sln.DotSettings @@ -0,0 +1,2 @@ + + True \ No newline at end of file diff --git a/src/Helper.cs b/src/Helper.cs index 79269db..cd628eb 100644 --- a/src/Helper.cs +++ b/src/Helper.cs @@ -2,6 +2,7 @@ using System.Diagnostics; using System.Drawing; using System.Globalization; +using Point = KMeansBase.Point; namespace kMeans; diff --git a/src/Program.cs b/src/Program.cs index 4bf48c7..54cbc11 100644 --- a/src/Program.cs +++ b/src/Program.cs @@ -6,7 +6,6 @@ public static class Program { private const string Coordinates = "coordinates.csv"; private const int K = 3; - private const int MaxLoops = 30; private const string PlotOut = "plot.png"; public static void Main() @@ -14,86 +13,10 @@ public static class Program Console.WriteLine("k-Means-Algorithm"); var points = ParseCsv(Coordinates).ToList(); - KMeansCalculation(points, K, out var centroids); + KMeansBase.KMeans.KMeansCalculation(points, K, out var centroids); var plot = CreatePlot(points, centroids); ExportPlot(plot, PlotOut); PreviewPlot(PlotOut); } - - private static void AssignPointsToCentroids(IEnumerable points, IReadOnlyCollection centroids) - { - foreach (var point in points) - { - var id = 0; - var distance = double.MaxValue; - foreach (var centroid in centroids) - { - // calculate euclid distance and assign id. - var currentDistance = Distance(centroid, point); - if (currentDistance > distance) continue; - distance = currentDistance; - id = centroid.ClusterId; - } - - point.ClusterId = id; - } - } - - private static double Distance(Point centroid, Point point) - { - return Math.Sqrt(Math.Pow(centroid.X - point.X, 2) + Math.Pow(centroid.Y - point.Y, 2)); - } - - private static IEnumerable InitializeRandomCentroids(IReadOnlyCollection points, int k) - { - var minX = points.Min(p => p.X); - var maxX = points.Max(p => p.X); - var minY = points.Min(p => p.Y); - var maxY = points.Max(p => p.Y); - var rnd = new Random(); - - for (var i = 0; i < k; i++) - { - var x = (minX + maxX) * rnd.NextDouble(); - var y = (minY + maxY) * rnd.NextDouble(); - var point = new Point(x, y, i); - Console.WriteLine(point); - yield return point; - } - } - - private static void KMeansCalculation(IReadOnlyCollection points, int k, out IReadOnlyCollection centroids) - { - centroids = InitializeRandomCentroids(points, k).ToArray(); - - for (var i = 0; i < MaxLoops; i++) - { - AssignPointsToCentroids(points, centroids); - if (!UpdateCentroids(points, centroids)) break; - } - } - - private static bool UpdateCentroids(IReadOnlyCollection points, IEnumerable centroids) - { - // calculate mean of all points of one cluster. - var updated = false; - foreach (var centroid in centroids) - { - updated |= UpdateClusterCentroid(centroid, points); - } - - return updated; - } - - private static bool UpdateClusterCentroid(Point centroid, IEnumerable points) - { - var pointsOfCluster = points.Where(p => p.ClusterId == centroid.ClusterId).ToArray(); - var sumX = pointsOfCluster.Sum(p => p.X); - var meanX = sumX / pointsOfCluster.Length; - var sumY = pointsOfCluster.Sum(p => p.Y); - var meanY = sumY / pointsOfCluster.Length; - - return centroid.SetCoordinates(meanX, meanY); - } } \ No newline at end of file diff --git a/src/kMeans.csproj b/src/kMeansConsole.csproj similarity index 77% rename from src/kMeans.csproj rename to src/kMeansConsole.csproj index 0428267..0bb24f5 100644 --- a/src/kMeans.csproj +++ b/src/kMeansConsole.csproj @@ -5,6 +5,7 @@ net6.0 enable enable + kMeans @@ -17,4 +18,8 @@ + + + +