Cort Willmott (University of Delaware), Rob Raskin (Jet Propulsion Laboratory), Chris Funk (NCGIA), Scott Webber (University of Delaware), and Mike Goodchild (NCGIA). National Center for Geographic Information and Analysis (NCGIA) University of California, Santa Barbara (UCSB). USA
UNIX (DEC Alpha, SGI Challenger) Also required are FORTRAN and C compilers and "ghostview" for viewing PostScript files
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AUTHOR
Cort Willmott (University of Delaware), Rob Raskin (Jet Propulsion Laboratory), Chris Funk (NCGIA), Scott Webber (University of Delaware), and Mike Goodchild (NCGIA). National Center for Geographic Information and Analysis (NCGIA) University of California, Santa Barbara (UCSB). USA
UNIX (DEC Alpha, SGI Challenger) Also required are FORTRAN and C compilers and "ghostview" for viewing PostScript files
PURPOSE
Spatial interpolation programs using spherical geometry
FUNCTIONS
ESDA
+ variogram can be automatically fitted
ESTIMATIONS
+ All of the interpolation algorithms in Spherekit take account of the sphericity of the earth. + Inverse distance weighting + Triangulation + Ordinary point kriging + Multiquadratic + Thin plate spline
+ cross validation: error field, table of error summary statistics, histogram, and a scatterplot. The overall error is computed either as the mean average error (MAE) or the root mean square error (RMSE).
Cort Willmott (University of Delaware), Rob Raskin (Jet Propulsion Laboratory), Chris Funk (NCGIA), Scott Webber (University of Delaware), and Mike Goodchild (NCGIA). National Center for Geographic Information and Analysis (NCGIA) University of California, Santa Barbara (UCSB). USA
UNIX (DEC Alpha, SGI Challenger) Also required are FORTRAN and C compilers and "ghostview" for viewing PostScript files
PURPOSE
Spatial interpolation programs using spherical geometry
FUNCTIONS
ESDA
+ variogram can be automatically fitted
ESTIMATIONS
+ All of the interpolation algorithms in Spherekit take account of the sphericity of the earth. + Inverse distance weighting + Triangulation + Ordinary point kriging + Multiquadratic + Thin plate spline
+ cross validation: error field, table of error summary statistics, histogram, and a scatterplot. The overall error is computed either as the mean average error (MAE) or the root mean square error (RMSE).
Cort Willmott (University of Delaware), Rob Raskin (Jet Propulsion Laboratory), Chris Funk (NCGIA), Scott Webber (University of Delaware), and Mike Goodchild (NCGIA). National Center for Geographic Information and Analysis (NCGIA) University of California, Santa Barbara (UCSB). USA
UNIX (DEC Alpha, SGI Challenger) Also required are FORTRAN and C compilers and "ghostview" for viewing PostScript files
PURPOSE
Spatial interpolation programs using spherical geometry
FUNCTIONS
ESDA
+ variogram can be automatically fitted
ESTIMATIONS
+ All of the interpolation algorithms in Spherekit take account of the sphericity of the earth. + Inverse distance weighting + Triangulation + Ordinary point kriging + Multiquadratic + Thin plate spline
+ cross validation: error field, table of error summary statistics, histogram, and a scatterplot. The overall error is computed either as the mean average error (MAE) or the root mean square error (RMSE).