title: Create a histogram in OxyPlot using c# wpf
body: <p>I'm trying to create a histogram in oxyplot. I followed the documentation on oxyplot.org (using ColumnSeries) and ended up with a histogram looking like this: </p>
  
  <p><a href="https://i.stack.imgur.com/88wW4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/88wW4.png" alt="enter image description here"></a></p>
  
  <p>And my code looks like this:</p>
  
  <pre><code>namespace WpfApplication1
  {
      /// &lt;summary&gt;
      /// Interaction logic for MainWindow.xaml
      /// &lt;/summary&gt;
      public partial class MainWindow : Window
      {
          public MainWindow()
          {
              InitializeComponent();
  
               this.Items = new Collection&lt;Item&gt;
              { 
                  new Item {Label="200", Value=37},
                  new Item {Label = "400", Value=7},
                  new Item {Label="600",Value=23},
                  new Item {Label="800",Value=23},
                  new Item {Label="1000",Value=23}
              };
  
              var model = new PlotModel {Title = "Column Series", LegendPlacement = LegendPlacement.Outside, LegendPosition = LegendPosition.RightTop, LegendOrientation = LegendOrientation.Vertical };
  
              model.Axes.Add(new CategoryAxis { Position = AxisPosition.Bottom, ItemsSource = this.Items, LabelField = "Label" });
              model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, MinimumPadding = 0, AbsoluteMinimum = 0 });
  
              model.Series.Add(new ColumnSeries { Title = "2009", ItemsSource = this.Items, ValueField = "Value" });
  
              this.Model1 = model;
              this.DataContext = this; 
          }
  
          public Collection&lt;Item&gt; Items { get; set; }
          public PlotModel Model1 { get; set; }
  
          public class Item
          {
              public string Label { get; set; }
              public double Value { get; set; }
          }
  
  
      }
  }
  </code></pre>
  
  <p>I will add some other data eventually. My problem right now is that I want my "x-axis" to be linear and I also want my columns to fill upp the whole space between 0 to 200, and 200 to 400 etc. I've tried to change the axis to a LinearAxis but since I use OxyPlot's ColumnSeries I must have a CategoryAxis on the x-axis, otherwise it won't work. Can I change my CategoryAxis in some way so it looks like a LinearAxis or is it better to use another kind of series (already tried BarSeries and RectangleBarSeries, that didn't work either)? I also want to move the labels 200, 400, 600 etc. and place them under each "intervall line"</p>