SAGA-GIS Tool Library Documentation (v7.2.0)

Tool Modifed Quadratic Shepard

Modified Quadratic Shepard method for grid interpolation from irregular distributed points. This tool is based on Tool 660 in TOMS.
QSHEP2D: Fortran routines implementing the Quadratic Shepard method for bivariate interpolation of scattered data (see R. J. Renka, ACM TOMS 14 (1988) pp.149-150).
Classes: E2b. Interpolation of scattered, non-gridded multivariate data.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputPointsShapes (input)POINTS--
Target System (*)Grid (optional input)TARGET_TEMPLATEuse this grid's system for output grids-
OutputCross Validation Summary (*)Table (optional output)CV_SUMMARY--
Cross Validation Residuals (*)Shapes (optional output)CV_RESIDUALS--
Target GridGrid (output)TARGET_OUT_GRID--
OptionsAttributeTable fieldFIELD--
Cross ValidationChoiceCV_METHOD-Available Choices:
[0] none
[1] leave one out
[2] 2-fold
[3] k-fold
Default: 0
Cross Validation SubsamplesIntegerCV_SAMPLESnumber of subsamples for k-fold cross validationMinimum: 2
Default: 10
Target Grid SystemChoiceTARGET_DEFINITION-Available Choices:
[0] user defined
[1] grid or grid system
Default: 0
CellsizeFloating pointTARGET_USER_SIZE-Minimum: 0.000000
Default: 1.000000
LeftFloating pointTARGET_USER_XMIN-Default: 0.000000
RightFloating pointTARGET_USER_XMAX-Default: 100.000000
BottomFloating pointTARGET_USER_YMIN-Default: 0.000000
TopFloating pointTARGET_USER_YMAX-Default: 100.000000
FitChoiceTARGET_USER_FITS-Available Choices:
[0] nodes
[1] cells
Default: 0
Grid SystemGrid systemTARGET_SYSTEM--
Quadratic NeighborsIntegerQUADRATIC_NEIGHBORS-Minimum: 5
Default: 13
Weighting NeighborsIntegerWEIGHTING_NEIGHBORS-Minimum: 3
Default: 19
(*) optional

Command-line

Usage: saga_cmd grid_gridding 4 [-POINTS <str>] [-FIELD <str>] [-CV_METHOD <str>] [-CV_SUMMARY <str>] [-CV_RESIDUALS <str>] [-CV_SAMPLES <num>] [-TARGET_DEFINITION <str>] [-TARGET_USER_SIZE <double>] [-TARGET_USER_XMIN <double>] [-TARGET_USER_XMAX <double>] [-TARGET_USER_YMIN <double>] [-TARGET_USER_YMAX <double>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>] [-QUADRATIC_NEIGHBORS <num>] [-WEIGHTING_NEIGHBORS <num>]
  -POINTS:<str>             	Points
	Shapes (input)
  -FIELD:<str>              	Attribute
	Table field
  -CV_METHOD:<str>          	Cross Validation
	Choice
	Available Choices:
	[0] none
	[1] leave one out
	[2] 2-fold
	[3] k-fold
	Default: 0
  -CV_SUMMARY:<str>         	Cross Validation Summary
	Table (optional output)
  -CV_RESIDUALS:<str>       	Cross Validation Residuals
	Shapes (optional output)
  -CV_SAMPLES:<num>         	Cross Validation Subsamples
	Integer
	Minimum: 2
	Default: 10
  -TARGET_DEFINITION:<str>  	Target Grid System
	Choice
	Available Choices:
	[0] user defined
	[1] grid or grid system
	Default: 0
  -TARGET_USER_SIZE:<double>	Cellsize
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:<double>	Left
	Floating point
	Default: 0.000000
  -TARGET_USER_XMAX:<double>	Right
	Floating point
	Default: 100.000000
  -TARGET_USER_YMIN:<double>	Bottom
	Floating point
	Default: 0.000000
  -TARGET_USER_YMAX:<double>	Top
	Floating point
	Default: 100.000000
  -TARGET_USER_FITS:<str>   	Fit
	Choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:<str>    	Target System
	Grid (optional input)
  -TARGET_OUT_GRID:<str>    	Target Grid
	Grid (output)
  -QUADRATIC_NEIGHBORS:<num>	Quadratic Neighbors
	Integer
	Minimum: 5
	Default: 13
  -WEIGHTING_NEIGHBORS:<num>	Weighting Neighbors
	Integer
	Minimum: 3
	Default: 19