Fit Results
The top right section of the Best Fit Dialog displays the fit results.
These results will be invalid (and therefore will have a dark blue background) whenever the best-fit solution has either not been solved or a change has been made since it was last solved. The fit results table contains, on a component-by-component basis, several statistical values related to the fit that help you determine how well the fit performs. These values include:
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Count. The number of points included in the fit for the specified component.
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Max Error. The maximum error between a pair of corresponding points. This is an indicator of the “worst fit” for any pair of corresponding points.
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RMS Error. The root-mean-square error of the fit as a whole. This is a good indicator of the overall error of the fit. This number is always less than or equal to the max error (although usually it’s noticeably smaller than the max error).
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StdDev Error. The standard deviation of the errors. A small value indicates that each pair of points had similar errors. A large value indicates that one or more error values differed significantly from the group as a whole.
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Max Error (all). This is the same as Max Error, except all points are included (even those which are deselected from the fit).
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RMS Error (all). This is the same as RMS Error, except all points are included (even those which are deselected from the fit).
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Translation. The x, y, and z instrument translation needed for the solution.
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Rotation (Fixed YZ). The instrument rotations required for the solution, in Fixed XYZ form.
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Rotation (Euler XYZ). The instrument rotations required for the solution, in Euler XYZ
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Rotation (Angle axis). The instrument rotation required for the solution, in Angle axis form (first three values describe the rotation axis, and the last value describes the rotation angle).
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Scale Factor. The scale factor applied for the fit. This will be 1.0 unless the Scale degree of freedom is checked (allowed to float).
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Matrix. This is the 4x4 transformation matrix that will be applied to the instrument.