relevel.im {spatstat.geom} | R Documentation |
For a pixel image with factor values, or a point pattern with
factor-valued marks, the levels of the factor are re-ordered so that
the level ref
is first and the others are moved down.
## S3 method for class 'im'
relevel(x, ref, ...)
## S3 method for class 'ppp'
relevel(x, ref, ...)
## S3 method for class 'ppx'
relevel(x, ref, ...)
x |
A pixel image (object of class |
ref |
The reference level. |
... |
Ignored. |
These functions are methods for the generic
relevel
.
If x
is a pixel image (object of class "im"
) with
factor values, or a point pattern (object of class "ppp"
,
"ppx"
, "lpp"
or "pp3"
)
with factor-valued marks, the levels of the factor are changed so
that the level specified by ref
comes first.
Object of the same kind as x
.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
Rolf Turner rolfturner@posteo.net
and Ege Rubak rubak@math.aau.dk
amacrine
relevel(amacrine, "on")