Pitney Bowes MapInfo Vertical Mapper - Manual (Page 79)

Chapter 5: Creating Grids Using Other Methods
User Guide
77
This figure illustrates the weighting of each of the six kernel estimate options.
This figure illustrates the results of using each type of weighting option; the choice
affects the “pointiness” of the grid in high density areas.
The Adaptive Exponent box enables you to specify the coefficient to adjust the kernel algorithm to
the peculiarity of the data set. The value you specify must be between 0 and 1.
The Calculate Bias Grid and Calculate Variance Grid check boxes enable you to generate a bias
grid and a variance grid.
The Extents button displays a summary of the geographic size and the z-value range of the original
point database, the density of the points, and the data value units.