image thumbnail

updated 1 year ago

Experimental (Semi-) Variogram by Wolfgang Schwanghart

calculate the isotropic and anisotropic experimental (semi-) variogram (geostatistics, spatial modelling, variogram)

variogram.m

image thumbnail

updated almost 4 years ago

Ordinary Kriging by Wolfgang Schwanghart

2D-interpolation using geostatistics (geostatistics, variogram, kriging)

kriging.m

image thumbnail

updated almost 4 years ago

variogramfit by Wolfgang Schwanghart

fits different theoretical variograms to an experimental variogram (variogram, geostatistics, spatial statistics)

variogramfit.m

image thumbnail

updated 4 years ago

Line Simplification by Wolfgang Schwanghart

Recursive Douglas-Peucker Polyline Simplification (Iterative Endpoint Fit) (approximation, interpolation, polyline)

dpsimplify(p,tol)

dpsimplify(p,tol)

image thumbnail

updated almost 5 years ago

cropmat by Wolfgang Schwanghart

crop arrays with axis-aligned minimum bounding box (matrix manipulation, matrix, image processing)

cropmat(IX,varargin)

image thumbnail

updated almost 5 years ago

shuffle label by Wolfgang Schwanghart

randomly relabel a label matrix (image processing, matrix manipulation)

shufflelabel(L,r)

image thumbnail

updated 5 years ago

Strahler Stream Order by Wolfgang Schwanghart

returns the Strahler Stream Order based on channel and flow direction matrix (hydrology, geomorphology, flow direction)

streamorder(M,W)

image thumbnail

updated 5 years ago

Flow Accumulation (upslope area) by Wolfgang Schwanghart

Flow accumulation algorithm that routes through flats (hydrology, geomorphology, elevation)

ixneighbors(varargin)

wflowacc(X,Y,dem,varargin)

image thumbnail

updated almost 6 years ago

Accumulate Connected Components by Wolfgang Schwanghart

Construct array with accumulation of connected components (accumarray, connected components, mathematics)

accumconncomps(a,b,fun)

image thumbnail

updated 6 years ago

curvature by Wolfgang Schwanghart

8-connected neighborhood curvature of a digital elevation model (slope, derivative, digital elevation mod...)

curvature(DEM,varargin)

image thumbnail

updated 6 years ago

gradient8 by Wolfgang Schwanghart

8-connected neighborhood gradient and aspect of a digital elevation model (gradient, aspect, exposition)

gradient8(DEM,res)

image thumbnail

updated 6 years ago

sandpile by Wolfgang Schwanghart

sandpile cellular automaton according to Bak & Paczuski (cellular automaton, neighborhood, reduced complexity)

sandpile(siz,nrsteps)

image thumbnail

updated 6 years ago

getborder by Wolfgang Schwanghart

returns a logical border inside or outside a mask (matrices, border logical mask, image processing)

getborder(I,method);

image thumbnail

updated almost 7 years ago

neighbor indexing by Wolfgang Schwanghart

returns neighbors of cells in n*m matrices (matrices, neighbor, adjacency)

ixneighbors(varargin)

Contact us