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  2. Inverse distance weighting - Wikipedia

    en.wikipedia.org/wiki/Inverse_distance_weighting

    This method can also be used to create spatial weights matrices in spatial autocorrelation analyses (e.g. Moran's I). [1] The name given to this type of method was motivated by the weighted average applied, since it resorts to the inverse of the distance to each known point ("amount of proximity") when assigning weights.

  3. Natural-neighbor interpolation - Wikipedia

    en.wikipedia.org/wiki/Natural-neighbor_interpolation

    Natural-neighbor interpolation or Sibson interpolation is a method of spatial ... x and x i is in blue, while the distance d ... Inverse distance weighting;

  4. Tobler's first law of geography - Wikipedia

    en.wikipedia.org/wiki/Tobler's_first_law_of...

    The First Law of Geography, according to Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." [1] This first law is the foundation of the fundamental concepts of spatial dependence and spatial autocorrelation and is utilized specifically for the inverse distance weighting method for ...

  5. Multivariate interpolation - Wikipedia

    en.wikipedia.org/wiki/Multivariate_interpolation

    Inverse distance weighting; ABOS - approximation based on smoothing; Kriging; Gradient-enhanced kriging (GEK) Thin plate spline; Polyharmonic spline (the thin-plate-spline is a special case of a polyharmonic spline) Radial basis function (Polyharmonic splines are a special case of radial basis functions with low degree polynomial terms) Least ...

  6. Spatial weight matrix - Wikipedia

    en.wikipedia.org/wiki/Spatial_weight_matrix

    The concept of a spatial weight is used in spatial analysis to describe neighbor relations between regions on a map. [1] If location i {\displaystyle i} is a neighbor of location j {\displaystyle j} then w i j ≠ 0 {\displaystyle w_{ij}\neq 0} otherwise w i j = 0 {\displaystyle w_{ij}=0} .

  7. Spatial analysis - Wikipedia

    en.wikipedia.org/wiki/Spatial_analysis

    Geographically weighted regression (GWR) is a local version of spatial regression that generates parameters disaggregated by the spatial units of analysis. [54] This allows assessment of the spatial heterogeneity in the estimated relationships between the independent and dependent variables.

  8. Rockworks - Wikipedia

    en.wikipedia.org/wiki/Rockworks

    A popular and simple technique called inverse distance weighting ... "GIS-based subsurface databases and 3-D geological modeling as a tool for the set up of ...

  9. Vincenty's formulae - Wikipedia

    en.wikipedia.org/wiki/Vincenty's_formulae

    Vincenty Inverse (distance between points) Calculators from the U.S. National Geodetic Survey : Online and downloadable PC-executable calculation utilities , including forward (direct) and inverse problems, in both two and three dimensions (accessed 2011-08-01).