shift {spatstat} | R Documentation |
Applies a vector shift of the plane to a geometrical object, such as a point pattern or a window.
shift(X, vec=c(0,0))
X |
Any suitable dataset representing a two-dimensional
object, such as a point pattern (object of class "ppp" ),
or a window (object of class "owin" ). |
vec |
Vector of length 2 representing a translation. |
This is generic. Methods are provided for
point patterns (shift.ppp
)
and windows (shift.owin
).
The object is translated by the vector vec
.
Another object of the same type, representing the result of applying the shift.
Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner rolf@math.unb.ca http://www.math.unb.ca/~rolf
shift.ppp
,
shift.owin
,
rotate
,
affine
data(cells) X <- shift(cells, c(2,3)) ## Not run: plot(X) # no discernible difference except coordinates are different ## End(Not run)