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Prepared sample and read me file
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‎ChartSample/ChartSample.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.14.36212.18 d17.14
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ChartSample", "ChartSample\ChartSample.csproj", "{3AC44380-7435-40D5-A2C7-621738BD7D71}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{3AC44380-7435-40D5-A2C7-621738BD7D71}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{3AC44380-7435-40D5-A2C7-621738BD7D71}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{3AC44380-7435-40D5-A2C7-621738BD7D71}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{3AC44380-7435-40D5-A2C7-621738BD7D71}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {BB271940-53D8-4167-B040-4503C0C40C88}
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EndGlobalSection
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EndGlobal

‎ChartSample/ChartSample/App.xaml‎

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<?xml version = "1.0" encoding = "UTF-8" ?>
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<Application xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
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xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
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xmlns:local="clr-namespace:ChartSample"
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x:Class="ChartSample.App">
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<Application.Resources>
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<ResourceDictionary>
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<ResourceDictionary.MergedDictionaries>
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<ResourceDictionary Source="Resources/Styles/Colors.xaml" />
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<ResourceDictionary Source="Resources/Styles/Styles.xaml" />
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</ResourceDictionary.MergedDictionaries>
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</ResourceDictionary>
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</Application.Resources>
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</Application>

‎ChartSample/ChartSample/App.xaml.cs‎

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namespace ChartSample
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{
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public partial class App : Application
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{
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public App()
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{
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InitializeComponent();
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}
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protected override Window CreateWindow(IActivationState? activationState)
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{
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return new Window(new AppShell());
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}
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}
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}

‎ChartSample/ChartSample/AppShell.xaml‎

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<?xml version="1.0" encoding="UTF-8" ?>
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<Shell
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x:Class="ChartSample.AppShell"
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xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
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xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
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xmlns:local="clr-namespace:ChartSample"
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Title="ChartSample">
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<ShellContent
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ContentTemplate="{DataTemplate local:MainPage}"
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Route="MainPage" />
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</Shell>

‎ChartSample/ChartSample/AppShell.xaml.cs‎

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namespace ChartSample
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{
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public partial class AppShell : Shell
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{
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public AppShell()
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{
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InitializeComponent();
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}
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}
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}

‎ChartSample/ChartSample/AzureOpenAIService.cs‎

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using Azure;
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using Azure.AI.OpenAI;
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using Microsoft.Extensions.AI;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace ChartSample
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{
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internal class AzureOpenAIService
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{
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const string endpoint = "";
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const string deploymentName = "";
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string key = "";
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internal IChatClient? Client { get; set; }
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internal string? ChatHistory { get; set; }
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public AzureOpenAIService()
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{
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GetAzureOpenAI();
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}
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private void GetAzureOpenAI()
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{
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try
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{
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var client = new AzureOpenAIClient(new Uri(endpoint), new AzureKeyCredential(key)).AsChatClient(modelId: deploymentName);
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Client = client;
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}
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catch (Exception)
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{
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}
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}
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public async Task<ObservableCollection<Model>> GetCleanedData(ObservableCollection<Model> rawData)
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{
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ObservableCollection<Model> collection = new ObservableCollection<Model>();
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var prompt = $"Clean the following e-commerce website traffic data, resolve outliers and fill missing values:\n{string.Join("\n", rawData.Select(d => $"{d.DateTime:yyyy-MM-dd-HH-m-ss}: {d.Visitors}"))} and the output cleaned data should be in the yyyy-MM-dd-HH-m-ss:Value, not required explanations";
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try
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{
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if(Client != null)
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{
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ChatHistory = prompt;
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var response = await Client.CompleteAsync(ChatHistory);
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return CleanedData(response.ToString(), collection);
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}
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}
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catch (Exception)
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{
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return await Task.FromResult(GetDummyData(collection));
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}
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return collection;
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}
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private ObservableCollection<Model> CleanedData(string json, ObservableCollection<Model> collection)
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{
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if(string.IsNullOrEmpty(json))
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{
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return new ObservableCollection<Model>();
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}
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var lines = json.Split('\n');
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foreach (var line in lines)
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{
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if(string.IsNullOrWhiteSpace(line))
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{
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continue;
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}
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var parts = line.Split(':');
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if(parts.Length == 2)
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{
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var date = DateTime.ParseExact(parts[0].Trim(), "yyyy-MM-dd-HH-m-ss", CultureInfo.InvariantCulture);
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var high = double.Parse(parts[1].Trim());
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collection.Add(new Model { DateTime = date, Visitors = high });
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}
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}
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return collection;
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}
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private ObservableCollection<Model> GetDummyData(ObservableCollection<Model> collection)
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{
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return new ObservableCollection<Model>()
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{
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new Model { DateTime = new DateTime(2024, 07, 01, 00, 00, 00), Visitors = 150 },
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new Model { DateTime = new DateTime(2024, 07, 01, 01, 00, 00), Visitors = 160 },
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new Model { DateTime = new DateTime(2024, 07, 01, 02, 00, 00), Visitors = 155 },
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new Model { DateTime = new DateTime(2024, 07, 01, 03, 00, 00), Visitors = 162 },
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new Model { DateTime = new DateTime(2024, 07, 01, 04, 00, 00), Visitors = 170 },
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new Model { DateTime = new DateTime(2024, 07, 01, 05, 00, 00), Visitors = 175 },
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new Model { DateTime = new DateTime(2024, 07, 01, 06, 00, 00), Visitors = 145 },
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new Model { DateTime = new DateTime(2024, 07, 01, 07, 00, 00), Visitors = 180 },
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new Model { DateTime = new DateTime(2024, 07, 01, 08, 00, 00), Visitors = 190 },
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new Model { DateTime = new DateTime(2024, 07, 01, 09, 00, 00), Visitors = 185 },
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new Model { DateTime = new DateTime(2024, 07, 01, 10, 00, 00), Visitors = 200 },
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new Model { DateTime = new DateTime(2024, 07, 01, 11, 00, 00), Visitors = 207 }, // Missing data
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new Model { DateTime = new DateTime(2024, 07, 01, 12, 00, 00), Visitors = 220 },
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new Model { DateTime = new DateTime(2024, 07, 01, 13, 00, 00), Visitors = 230 },
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new Model { DateTime = new DateTime(2024, 07, 01, 14, 00, 00), Visitors = 237 }, // Missing data
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new Model { DateTime = new DateTime(2024, 07, 01, 15, 00, 00), Visitors = 250 },
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new Model { DateTime = new DateTime(2024, 07, 01, 16, 00, 00), Visitors = 260 },
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new Model { DateTime = new DateTime(2024, 07, 01, 17, 00, 00), Visitors = 270 },
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new Model { DateTime = new DateTime(2024, 07, 01, 18, 00, 00), Visitors = 277 }, // Missing data
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new Model { DateTime = new DateTime(2024, 07, 01, 19, 00, 00), Visitors = 280 },
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new Model { DateTime = new DateTime(2024, 07, 01, 20, 00, 00), Visitors = 290 },
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new Model { DateTime = new DateTime(2024, 07, 01, 21, 00, 00), Visitors = 300 },
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new Model { DateTime = new DateTime(2024, 07, 01, 22, 00, 00), Visitors = 307 }, // Missing data
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new Model { DateTime = new DateTime(2024, 07, 01, 23, 00, 00), Visitors = 320 },
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};
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}
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}
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}

‎ChartSample/ChartSample/ChartSample.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFrameworks>net9.0-android;net9.0-ios;net9.0-maccatalyst</TargetFrameworks>
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<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net9.0-windows10.0.19041.0</TargetFrameworks>
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<!-- Uncomment to also build the tizen app. You will need to install tizen by following this: https://github.com/Samsung/Tizen.NET -->
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<!-- <TargetFrameworks>$(TargetFrameworks);net9.0-tizen</TargetFrameworks> -->
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<!-- Note for MacCatalyst:
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The default runtime is maccatalyst-x64, except in Release config, in which case the default is maccatalyst-x64;maccatalyst-arm64.
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When specifying both architectures, use the plural <RuntimeIdentifiers> instead of the singular <RuntimeIdentifier>.
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The Mac App Store will NOT accept apps with ONLY maccatalyst-arm64 indicated;
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either BOTH runtimes must be indicated or ONLY macatalyst-x64. -->
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<!-- For example: <RuntimeIdentifiers>maccatalyst-x64;maccatalyst-arm64</RuntimeIdentifiers> -->
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<OutputType>Exe</OutputType>
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<RootNamespace>ChartSample</RootNamespace>
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<UseMaui>true</UseMaui>
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<SingleProject>true</SingleProject>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<!-- Display name -->
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<ApplicationTitle>ChartSample</ApplicationTitle>
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<!-- App Identifier -->
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<ApplicationId>com.companyname.chartsample</ApplicationId>
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<!-- Versions -->
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<ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
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<ApplicationVersion>1</ApplicationVersion>
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<!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
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<WindowsPackageType>None</WindowsPackageType>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">15.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">15.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
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<TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tizen'">6.5</SupportedOSPlatformVersion>
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</PropertyGroup>
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<ItemGroup>
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<!-- App Icon -->
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<MauiIcon Include="Resources\AppIcon\appicon.svg" ForegroundFile="Resources\AppIcon\appiconfg.svg" Color="#512BD4" />
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<!-- Splash Screen -->
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<MauiSplashScreen Include="Resources\Splash\splash.svg" Color="#512BD4" BaseSize="128,128" />
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<!-- Images -->
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<MauiImage Include="Resources\Images\*" />
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<MauiImage Update="Resources\Images\dotnet_bot.png" Resize="True" BaseSize="300,185" />
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<!-- Custom Fonts -->
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<MauiFont Include="Resources\Fonts\*" />
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<!-- Raw Assets (also remove the "Resources\Raw" prefix) -->
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<MauiAsset Include="Resources\Raw\**" LogicalName="%(RecursiveDir)%(Filename)%(Extension)" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.Maui.Controls" Version="$(MauiVersion)" />
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<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="9.0.0" />
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<PackageReference Include="Syncfusion.Maui.Charts" Version="*" />
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<PackageReference Include="Syncfusion.Maui.Core" Version="*" />
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<PackageReference Include="Azure.AI.OpenAI" Version="2.0.0" />
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<PackageReference Include="Azure.Identity" Version="1.13.1" />
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<PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.0.1-preview.1.24570.5" />
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</ItemGroup>
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</Project>

‎ChartSample/ChartSample/MainPage.xaml‎

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<?xml version="1.0" encoding="utf-8" ?>
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<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
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xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
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xmlns:chart="clr-namespace:Syncfusion.Maui.Charts;assembly=Syncfusion.Maui.Charts"
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xmlns:core="clr-namespace:Syncfusion.Maui.Core;assembly=Syncfusion.Maui.Core"
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xmlns:local="clr-namespace:ChartSample"
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x:Class="ChartSample.MainPage">
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<ContentPage.BindingContext>
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<local:ViewModel x:Name="viewModel"/>
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</ContentPage.BindingContext>
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="*"/>
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<RowDefinition Height="Auto"/>
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</Grid.RowDefinitions>
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<chart:SfCartesianChart Grid.Row="0" x:Name="Chart" Margin="5" PaletteBrushes="{Binding PaletteBrushes}">
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<chart:SfCartesianChart.Title>
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<StackLayout Orientation="Vertical">
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<Label Text="E-Commerce Website Traffic Data" FontSize="18" FontAttributes="Bold" HorizontalTextAlignment="Center" />
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<Label Text="AI-powered data cleaning and preprocessing every hour, tracking hourly website visitors" LineBreakMode="WordWrap" HorizontalTextAlignment="Center" FontSize="14"/>
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</StackLayout>
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</chart:SfCartesianChart.Title>
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<chart:SfCartesianChart.XAxes>
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<chart:DateTimeAxis ShowMajorGridLines="False" EdgeLabelsDrawingMode="Shift">
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<chart:DateTimeAxis.LabelStyle>
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<chart:ChartAxisLabelStyle LabelFormat="hh tt"/>
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</chart:DateTimeAxis.LabelStyle>
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</chart:DateTimeAxis>
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</chart:SfCartesianChart.XAxes>
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<chart:SfCartesianChart.YAxes>
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<chart:NumericalAxis ShowMajorGridLines="False" Minimum="140" Interval="30" Maximum="320" EdgeLabelsDrawingMode="Center">
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</chart:NumericalAxis>
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</chart:SfCartesianChart.YAxes>
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<chart:LineSeries x:Name="CleanedDataseries" ItemsSource="{Binding CleanedData}"
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XBindingPath="DateTime" YBindingPath="Visitors"
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StrokeWidth="2"/>
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<chart:LineSeries x:Name="RawDataSeries" ItemsSource="{Binding RawData}"
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XBindingPath="DateTime" YBindingPath="Visitors"
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StrokeWidth="2"/>
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</chart:SfCartesianChart>
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<core:SfBusyIndicator Grid.Row="0" IsVisible="{Binding IsBusy}"
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IsRunning="{Binding IsBusy}" AnimationType="DoubleCircle"/>
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</Grid>
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</ContentPage>

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