The Histogram Tool

You use the Histogram tool to view the distribution of your data. You can plot single or multiple data series for any property of the following objects in your solution: 2D grids, 3D grids, 3D meshes, wells, tri-meshes, polylines, point sets, and markers. You open the Histogram Tool from the Charts View toolbar.

At the top of the tool you can use the toolbar to duplicate, rename, or delete your existing histograms.

Duplicates the currently selected item in the drop-down list (i.e., the active item).
Opens the Rename dialog, where a new name can be given to the active item.
Deletes the active item.

A histogram for two series with distribution models.    click to enlarge

To create a histogram

  1. At the top of the tool, select Create new from the Histogram drop-down list. Optionally, enter the name of the histogram in the text field below. By default, a new histogram is named as 'Histogram <#>'. To modify the name of an existing histogram use the rename button from the toolbar.
  2. In the Data tab, if a series does not yet exist, click Add series. Use the series toolbar to manage your 'Series' table.
    Adds a new series in the chart.
    Moves the selected series one step up in the table. The order in the table determines the order drawn on your chart.
    Moves the selected series one step down in the table. The order in the table determines the order drawn on your chart.
    Duplicates the currently selected series.
    Deletes the selected series.
  3. On the left side of the tab, click the series name you want to provide inputs for. The selected row is highlighted in blue. On the right side of the tab, specify the inputs and settings.
    • Name  Name of the series you added or selected in the table on the left. You can update the name in the text field.
    • Source type  Select the source type from the drop-down list. You can select from one of the following: 2D Grid, 3D Grid, 3D Mesh, Marker set, Point set, Polyline set, Tri-mesh, or Wellbore.
    • Surface type  Select the surface type from the drop-down list, when the source type is 2D Grid, Marker set, Point set, Polyline set or Tri-mesh.
    • Folder  Select the folder from the drop-down list, when the source type is 2D Grid, Marker set, Point set, Polyline set or Tri-mesh.
    • Source  Select the source from the drop-down list. The drop-down list shows all sources of the selected 'source type' in your solution. If your source type is 'Wellbore', then a table is shown here, where all the wellbores in the selected wellbore group are listed. Check the wellbores for which you want to plot your data.
    • X-Axis property/log type  This selection acts as a filter. Select the property type from the drop-down list. If you choose 'Any...', all your properties for the selected 'Source' object will be available in the following drop-down list.
    • Important  When you plot multiple data series in a histogram, they must have the same property type (for discrete properties) or quantity (for continuous properties).
    • X-Axis property/log  Select the property that you want to plot from the drop-down list. If 'Any...' was chosen for the type, selecting a property here will populate the type field above with the corresponding type.
    • Step  Active only if the selected property has multiple realizations or time steps. Select the realization or time step from the drop-down list.
    • Filter  Adding a filter is optional. You can add a property-based filter on the selected series. You can use another property to filter the property. Click the 'Edit Filter' icon to open the Filter Tool. The source type selected on the Data tab is populated in the tool.
  4. Click Apply to plot the histogram and keep the tool open, or click OK to plot the histogram in the Charts View and close the tool. See working with the charts display for an overview of chart controls.
  5. Use the Charts View Manager to control the histograms shown in the Charts View.

Histogram tool tabs

The Histogram Tool has several tabs, each with specific settings which allow you to create and modify your histogram. With the Data tab you specify the data for the chart, then you can use the Distribution Model tab to create a distribution model on the data. Use the Configuration, Series and Chart Format tabs edit how your charts are displayed. If the tab has left and right sections, you add and select a series or components on the left, and it is highlighted in blue. On the right section you change and specify the settings.

Working with the charts display

When you have plotted a chart in the Charts View, there are various controls on how to display the data.

Control the layout and visibility of your charts with the Charts View Manager.
  • Maximizing a single chart - When there are multiple charts in the view, click on the pop out icon to maximize the size of the selected chart. To return to the original size, click on the pop in icon .
  • Changing units - A right mouse button click on the axes opens a context menu. You can change the units by making a selection from the options provided to you. In histogram plots, the unit of the vertical axis cannot be changed.
  • Zooming - In the plot area, left mouse button click and keep pressed down to activate zooming. You can move your mouse in any direction. A preview window indicates the new display window. When you let go of the left mouse button, this is the part of the chart that is shown. To zoom out, double click in the chart area. The Reset Zoom option is also available in the context menu that opens when you click the right mouse button in the chart.
  • Zooming along axes - To zoom along only one axis, hover near the edges of the vertical or horizontal axis with your mouse until the tool tip changes into a bidirectional arrow. Left mouse button click and keep pressed down while moving the mouse will zoom the selected axis relative to the other axis. Additionally, to zoom along both the axes together, hover near the corners of both the axes until the tool tip changes into a bidirectional arrow at a 45 degree orientation. Left mouse button click and keep pressed down while moving the mouse will zoom both axes. To reset the layout, double click in the chart area.
  • Scroll axis relative to other axis - Hover over the center of the vertical or horizontal axis with your mouse until the tool tip changes into a bidirectional arrow. Left mouse button click and keep pressed down while moving the mouse will scroll the selected axis relative to the other axis. To reset the layout, double click in the chart area.
  • Show/hide legend - When the legend is shown, you can also use it as a display filter: when you click on a name, that data is hidden from the chart, and the legend is grayed out. To show the data again, click on the grayed out name in the legend.

Context menu for histograms

Right-mouse click on a histogram to open the context menu with the following options:

Edit... Opens the Histogram Tool.
Distribution Model... Opens the Distribution Model tab on the Histogram Tool.
Format...  Opens the Chart Format tab on the Histogram Tool.
Statistics Report...   Opens the Histogram Statistics Report.
Take Screenshot Copies the image to the clipboard which you can then paste in other applications.
Remove from View  Removes the histogram from the charts view.
Reset Zoom   Clear all zoom changes.