Uses least-squares procedures to find the plane that best fits the data. A least-squares fit is one in which the sum of the square of the errors between the actual data and the plane equation are minimized:
Correlation coefficient
The correlation coefficient presented by DPlot is a measure of how well the plane fits the data. A correlation coefficient of 1.0 denotes a perfect fit. The correlation coefficient is described mathematically as:
Page url:
https://www.dplot.com/help/index.htm?helpid_bestfitplane.htm