SAGA-GIS Tool Library Documentation (v7.2.0)

Tool Multi-Band Variation

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


Parameters

 NameTypeIdentifierDescriptionConstraints
InputBandsGrid list (input)BANDS--
OutputMean DistanceGrid (output)MEAN--
Standard DeviationGrid (output)STDDEV--
DistanceGrid (output)DIFF--
OptionsGrid systemGrid systemPARAMETERS_GRID_SYSTEM--
Radius [Cells]IntegerRADIUS-Minimum: 1
Default: 1
Weighting FunctionChoiceDW_WEIGHTING-Available Choices:
[0] no distance weighting
[1] inverse distance to a power
[2] exponential
[3] gaussian weighting
Default: 0
Inverse Distance Weighting PowerFloating pointDW_IDW_POWER-Minimum: 0.000000
Default: 1.000000
Inverse Distance OffsetBooleanDW_IDW_OFFSETCalculates weights for distance plus one, avoiding division by zero for zero distancesDefault: 1
Gaussian and Exponential Weighting BandwidthFloating pointDW_BANDWIDTH-Minimum: 0.000000
Default: 1.000000

Command-line

Usage: saga_cmd statistics_grid 9 [-BANDS <str>] [-MEAN <str>] [-STDDEV <str>] [-DIFF <str>] [-RADIUS <num>] [-DW_WEIGHTING <str>] [-DW_IDW_POWER <double>] [-DW_IDW_OFFSET <str>] [-DW_BANDWIDTH <double>]
  -BANDS:<str>          	Bands
	Grid list (input)
  -MEAN:<str>           	Mean Distance
	Grid (output)
  -STDDEV:<str>         	Standard Deviation
	Grid (output)
  -DIFF:<str>           	Distance
	Grid (output)
  -RADIUS:<num>         	Radius [Cells]
	Integer
	Minimum: 1
	Default: 1
  -DW_WEIGHTING:<str>   	Weighting Function
	Choice
	Available Choices:
	[0] no distance weighting
	[1] inverse distance to a power
	[2] exponential
	[3] gaussian weighting
	Default: 0
  -DW_IDW_POWER:<double>	Inverse Distance Weighting Power
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -DW_IDW_OFFSET:<str>  	Inverse Distance Offset
	Boolean
	Default: 1
  -DW_BANDWIDTH:<double>	Gaussian and Exponential Weighting Bandwidth
	Floating point
	Minimum: 0.000000
	Default: 1.000000