Add a Threshold

Thresholds can be added to Probability Plots as deciles in the or individually. This article explains how to insert them individually. See Draw and Configure a Probability Plot for information on adding deciles.

Notes:

Thresholds are required for Insert an Indicator Variogram.

If you select a threshold in the Project Tree and open the 3D Viewer, all data points below the threshold display in red.

Activity Steps

  1. In the Project Tree, right-click on the Probability Plot component and select Add » Threshold from the menu.

    The Threshold tab displays in the Property Panel.

  2. Enter the Threshold value in the Threshold property panel.

    The new threshold displays in yellow on the plot.

  3. Configure the following options as required.
    • Type – Type of threshold. Select from Percentile and CutOff.
    • Report as – How the name of the threshold displays in the Project Window. Select from:
      • Default – Value entered in the Threshold field.
      • Percentile
      • CutOff
      • Both – Percentile followed by the CutOff value.
    • Global = Local – Whether the use the global cut off for the local data.
    • Global CDF cut-off – Only available if Global = Local is unchecked.
    • Show all threshold lines
    • Line widths
    • Draw – How to draw the data points. Select from:
      • Line
      • Circle
      • Cross
      • Plus
      • Dot
    • Colour Key – See Colour Keys.

      Note: Colour Key won't be available if Line is selected as the Draw option.

    • CDF All – Show CDF for the entire dataset.
    • CDF Interval – Show CDF for the defined portion of the dataset. Select from the options below.
    • Lower Threshold – Show CDF plot for the data below the threshold.
    • Inner Threshold – Show CDF plot for the data between this threshold and the next higher threshold.
    • Upper Threshold – Show CDF plot for the data above the threshold.