Tool Name	Multi-Band Variation
Tool ID	9
Library ID	statistics_grid
Version	1.0
Author(s)	O.Conrad (c) 2010

Description

Calculates for each cell the spectral variation based on feature space distances to the centroid for all cells in specified neighbourhood. The average distance has been used for Spectral Variation Hypothesis (SVH).

References

Palmer, M.W., Earls, P., Hoagland, B.W., White, P.S., Wohlgemuth, T. (2002): Quantitative tools for perfecting species lists. Environmetrics 13, 121-137.

Parameters

Name	Type	Identifier	Description	Constraints
Input
Bands	grid list, input	BANDS
Output
Mean Distance	grid, output	MEAN
Standard Deviation	grid, output	STDDEV
Distance	grid, output	DIFF
Options
Radius [Cells]	integer number	RADIUS		Minimum: 1 Default: 1
Weighting Function	choice	DW_WEIGHTING		Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 0
Power	floating point number	DW_IDW_POWER		Minimum: 0.000000 Default: 2.000000
Bandwidth	floating point number	DW_BANDWIDTH	Bandwidth for exponential and Gaussian weighting	Minimum: 0.000000 Default: 1.000000