- formula
Regression model formula of a formula object
- data
a Spatial*DataFrame, i.e. SpatialPointsDataFrame or SpatialPolygonsDataFrame as defined in package sp, or a sf object defined in package sf
- predictdata
a Spatial*DataFrame, i.e. SpatialPointsDataFrame or SpatialPolygonsDataFrame as defined in package sp, or a sf object defined in package sf
- bw
bandwidth used in the weighting function, possibly calculated by bw.gwr;fixed (distance) or adaptive bandwidth(number of nearest neighbours)
- kernel
function chosen as follows:
gaussian: wgt = exp(-.5*(vdist/bw)^2);
exponential: wgt = exp(-vdist/bw);
bisquare: wgt = (1-(vdist/bw)^2)^2 if vdist < bw, wgt=0 otherwise;
tricube: wgt = (1-(vdist/bw)^3)^3 if vdist < bw, wgt=0 otherwise;
boxcar: wgt=1 if dist < bw, wgt=0 otherwise
- adaptive
if TRUE calculate an adaptive kernel where the bandwidth (bw) corresponds to the number of nearest neighbours (i.e. adaptive distance); default is FALSE, where a fixed kernel is found (bandwidth is a fixed distance)
- p
the power of the Minkowski distance, default is 2, i.e. the Euclidean distance
- theta
an angle in radians to rotate the coordinate system, default is 0
- longlat
if TRUE, great circle distances will be calculated
- dMat1
a pre-specified distance matrix between data points and prediction locations; if not given, it will be calculated by the given parameters
- dMat2
a pre-specified sysmetric distance matrix between data points; if not given, it will be calculated by the given parameters
- x
an object of class “gwrm.pred”, returned by the function gwr.predict
- ...
arguments passed through (unused)