Shift a point data set (function name changed from shift to Shift to avoid collision with spatstat)
Usage
Shift(pts,xsh=0.0,ysh=0.0)
Arguments
pts
The point data set to shift
xsh
Amount to shift along the x-axis
ysh
Amount to shift along the y-axis
Value
A point data set like pts, but with xsh added to its
x-coordinates, and ysh added to its y-coordinates.
References
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.