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.
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Duplicates the currently selected item in the drop-down list (i.e., the active item). |
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Opens the Rename dialog, where a new name can be given to the active item. |
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Deletes the active item. |
To create a histogram
- 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. - 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. - 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.
- 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. - 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.
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.
Series You can create, reorder, duplicate, or delete a series in the table. Use the checkboxes to show or hide the series on your histogram. Click the series name you want to provide inputs for. The selected row is highlighted in blue.
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Adds a new series in the chart. |
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Moves the selected series one step up in the table. The order in the table determines the order drawn on your chart. |
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Moves the selected series one step down in the table. The order in the table determines the order drawn on your chart. |
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Duplicates the currently selected series. |
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Deletes the selected series. |
Series Definition On the right side of the tab you assign inputs and settings to the selected series.
- 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.
- 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.
On this tab you control the X-axis (bin size and range) and Y-axis (normalization) of the histogram.
- Histogram normalization Controls the Y-axis normalization type of the histogram. Select one of the following options:
- Count The Y-axis displays the count (dimensionless) and the histogram bar heights show the number of samples in each bin. The bar heights add up to the total number of samples if the bin range is wide enough to encompass all the data.
- Probability The Y-axis displays probability (dimensionless) and the histogram bar heights show the count (number of samples in each bin) divided by the total number of samples in the data set. The bar heights add up to 100% if the bin range is wide enough to encompass all the data.
- Probability Density (Only for continuous properties) The Y-axis displays probability density (with units, note that probability density has units equal to the inverse of the X-axis units) which is the amount of probability per increment of the X-axis property. The histogram bar heights show the probability in each bin divided by the bin size. The bin areas are dimensionless and add up to 100% if the bin range is wide enough to encompass all the data.
- Bins The number of bins in you want to use in the histogram. After defining a histogram, you can type a number in the field, or change the current number with the up or down arrow buttons.
- Bin range The starting and ending point for the histogram bins. By default, the bin range is the same as the data range. To enter the range manually, uncheck the checkbox adjacent to 'Same as data range'. Specify the Minimum and Maximum values for the range in the fields below.
- Bin size This field is read-only and displays the bin range divided by the number of bins.
On this tab you can create a distribution model to display on your histogram. Distribution models are only supported for continuous properties. This tab is divided into two parts.
Series Click the series name you want to assign a distribution model to. The selected row is highlighted in blue.
Distribution Model Assign a distribution model to your selected series by selecting one from the drop-down list. To create a new distribution model, click the edit
icon to open the Distribution Model Tool. After you have created or assigned a distribution model to your series, the tab updates with an overview of the specified settings:
- Name Displays the distribution model assigned to your series. Select one of the options in the drop-down list. If none are available, create one with the Distribution Model Tool.
- Type Displays the distribution model type assigned in the Distribution Model Tool. The following distribution types are available: Gaussian, Lognormal, Triangular and Uniform.
To visualize the distribution model on the histogram, ensure the checkbox next to your series is checked in the 'Series' table on the Distribution Model tab. At the bottom of the Histogram Tool, click Apply to plot the distribution model on the histogram and keep the tool open, or click OK to plot the distribution model on the histogram and close the tool.
In this tab you can format each data series of your histograms and distribution models. On the left side of the tab select the series you want to change or format. The series is highlighted in blue and the right side updates with the relevant settings.
Histogram
- Color To change the color for your histogram bins.
Distribution Model You can change the format of the distribution model. The controls are only enabled when you have assigned a distribution model to your series in the Distribution Model tab.
- Color To change the color of the line, select a color from the drop-down list.
- Style To change the line style, select a style from the drop-down list.
- Thickness Defines the line thickness. To change the line thickness, enter a number in the field or change the number with the up or down arrow buttons.
In this tab you can format the chart Axes, Title and Legend. On the left side of the tab select the component you want to change or format. The component is highlighted in blue and the right side updates with the relevant settings.
Axes You can adjust the scale, axis range, and title of your axis.
- Axis Select the axis you want to format from the drop-down list. The Y-Axis is not available for histograms.
- Scale Select Linear or Logarithmic.
- Reverse Only available for scatter charts. Use the checkbox to reverse how the axis is displayed (low to high or high to low).
- Axis range The starting and ending points for the axis. By default the Same as bin range checkbox (for histograms) is checked, meaning the that the minimum and maximum of the axis is taken from the bin range. By default the Auto checkbox (for scatter charts) is checked, meaning that the minimum and maximum of the axis is taken from the series values. To enter the range manually, uncheck the checkbox. Enter the Minimum and Maximum values in the fields below.
- Title Change the visibility and text of your axis title.
- Visible Use the checkbox to show or hide the axis title.
- Same as property type To customize your axis title, uncheck the checkbox. Enter your text in the text field.
Title You can edit and format the title of your chart.
- Visible Use the checkbox to show or hide the chart title. The chart must be visible to access the color and font settings.
- Same as chart name To customize you chart title, uncheck the checkbox. Enter your text in the text field.
- Color To change the color of the chart title, select a color from the drop-down list.
- Font Click Font... to open a dialog where you can specify which font, style and size to use for the title.
Legend You can format your legends and their locations on the chart.
- Legend You can format the main legend of the chart.
- Visible Use the checkbox to show or hide the legend on the chart.
- Location To change the legend location on the chart, select a location from the drop-down list.
- Color property Legend You can format the legend of a color property if selected in the Data tab.
- Visible Use the checkbox to show or hide the color property legend on the chart.
- Location To change the legend location of the color property on the chart, select a location from the drop-down list.
- Appearance You can format the text and background options of your legend.
- Text color To change the color of the legend text, select a color from the drop-down list.
- Font Click Font... to open a dialog where you can specify which font, style and size to use for the legend.
- Background color To change the background color of the legend, select a color from the drop-down list.
- Show border Use the checkbox to show or hide a line border around your legend.
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.
- 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.
Right-mouse click on a histogram to open the context menu with the following options:
| Opens the Histogram Tool. | |
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Opens the Distribution Model tab on the Histogram Tool. |
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Opens the Chart Format tab on the Histogram Tool. |
Statistics Report...
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Opens the Histogram Statistics Report. |
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Copies the image to the clipboard which you can then paste in other applications. |
| Remove from View | Removes the histogram from the charts view. |
| Clear all zoom changes. |
Statistics Report...