| stkhat {splancs} | R Documentation |
Compute the space-time K-functions
stkhat(pts, times, poly, tlimits, s, tm)
pts |
A set of points as defined in Splancs |
times |
A vector of times, the same length as the number of points in pts
|
poly |
A polygon enclosing the points |
tlimits |
A vector of length 2 specifying the upper and lower temporal domain. |
s |
A vector of spatial distances for the analysis. |
tm |
A vector of times for the analysis |
A list with the following components is returned:
s, t |
The spatial and temporal scales |
ks |
The spatial K-function |
kt |
Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern analysis code in S-Plus. Computers and Geosciences, 19, 627-655; the original sources can be accessed at: http://www.maths.lancs.ac.uk/~rowlings/Splancs/. See also Bivand, R. and Gebhardt, A. 2000 Implementing functions for spatial statistical analysis using the R language. Journal of Geographical Systems, 2, 307-317.