Available with Geostatistical Analyst license.
The Semivariogram/Covariance Cloud tool is useful for detecting local outliers. They appear as points that are close together (low values on the x-axis) but are high on the y-axis, indicating that the two points making up that pair have very different values. This is contrary to what you would expect—namely, that points that are close together have similar values.
- Click the point or polygon feature layer in the ArcMap table of contents that you want to explore.
- Click the Geostatistical Analyst drop-down menu on the Geostatistical Analyst toolbar, click Explore Data, then click Semivariogram/Covariance Cloud.