This parameter sets the number of points automatically clipped per order-trace fit/clip iteration.
The TUNE_CLPBY most-deviant points are clipped before a re-fit is attempted, this process is then repeated until either:
- all points have deviations of less than TUNE_CLPMXDEV from the polynomial,
or - so many points have been clipped that a meaningful fit can no longer be attempted.
In the latter case the order will be automatically disabled. The user may manually re-fit the trace if the order is still to be processed.
The default value is 1.
Martin Clayton