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least-squares analysis and adjustment

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  1. [surveying] A process based on the theory of probability that estimates new coordinate locations for parcel fabric points. The process uses coordinate geometry (COGO) dimensions on parcel lines, existing coordinates of parcel points, and the network redundancy of connected parcel lines to estimate updated coordinates for parcel points in a best-fit solution. In the parcel fabric, a least-squares analysis can either be used as a consistency check to detect outliers of mistakes in COGO dimensions or as a weighted analysis to estimate updated coordinates for parcel points. When the weighted analysis returns acceptable results, the updated coordinates can be applied to parcel fabric points to adjust them to more spatially accurate positions.

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