| spatialAtRisk.fromXYZ {lgcp} | R Documentation |
spatialAtRisk.fromXYZ function
Description
Creates a spatialAtRisk object from a list of X, Y, Zm giving respectively the x and y coordinates of the grid and the 'z' values ie so that Zm[i,j] is proportional to the at-risk population at X[i], Y[j].
Usage
## S3 method for class 'fromXYZ'
spatialAtRisk(X, Y, Zm, ...)
Arguments
X |
vector of x-coordinates |
Y |
vector of y-coordinates |
Zm |
matrix such that Zm[i,j] = f(x[i],y[j]) for some function f |
... |
additional arguments |
Value
object of class spatialAtRisk
Brix A, Diggle PJ (2001). Spatiotemporal Prediction for log-Gaussian Cox processes. Journal of the Royal Statistical Society, Series B, 63(4), 823-841.
Diggle P, Rowlingson B, Su T (2005). Point Process Methodology for On-line Spatio-temporal Disease Surveillance. Environmetrics, 16(5), 423-434.
See Also
lgcpPredict, linklgcpSim, spatialAtRisk.default, spatialAtRisk.im, spatialAtRisk.function, spatialAtRisk.SpatialGridDataFrame, spatialAtRisk.SpatialPolygonsDataFrame, spatialAtRisk.bivden