# Fitter

Use the Fitter section of the Settings tab to configure the number of points to ignore.

Feature | Description
--- | ---
Number to Ignore | Controls the number of edge points the underlying Fit Line tool can ignore while calculating the best fitting line. To determine which point to ignore, the Fit Line tool considers all possible subsets and keeps the set that produces the best score.
Decrement Number to Ignore | Allows the Find Line tool to decrement the number of points to ignore for each caliper that fails to produce a valid edge point. This feature protects an application where caliper failures can leave the Fit Line tool with fewer than two input points. Cognex recommends you enable this option if you allow the tool to ignore any input points.