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FitLineToPoints_LTE

Expert

Module: FoundationBasic

Approximates points with a line using Least Trimmed Error algorithm.

Applications

Brute-force finding of a line that best matches a subset of the input points. Very efficient against outliers, but possibly slow for bigger subsets.
Name Type Range Description
Input value
 inPoints Point2DArray Input points
Input value
 inRange Range* Determines which array points take part in fitting process
Input value
 inSeedSubsetSize Integer 2 - 10 Number of points in one combination for getting a sample line
Input value
 inEvalSubsetSize Integer* 3 - Number of closest points used for evaluation of a sample line, or Auto if seed points are to be used
Output value
 outLine Line2D Fitted line
Output value
 outLTInliers Point2DArray Inlying points of the best LTE line
Output value
 outLTError Real The Least Trimmed Error
Diagnostic input
 diagIterationCount Integer Number of combinations considered

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Empty array of points in FitLineToPoints_LTE.
DomainError Range exceeds the input point array in FitLineToPoints_LTE.

Complexity Level

This filter is available on Expert Complexity Level.

Filter Group

This filter is member of FitLineToPoints filter group.