Given a numeric vector, or an object containing numeric spatial coordinates, determine whether the values have been rounded to a certain number of decimal places.
rounding(x)# S3 method for default
rounding(x)
# S3 method for ppp
rounding(x)
# S3 method for pp3
rounding(x)
# S3 method for ppx
rounding(x)
An integer.
A numeric vector, or an object containing numeric spatial coordinates.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
and Rolf Turner r.turner@auckland.ac.nz
For a numeric vector x,
this function determines whether the values have been rounded
to a certain number of decimal places.
If the entries of x are not all integers, then
rounding(x) returns the smallest number of digits d
after the decimal point
such that round(x, digits=d) is identical to
x.
For example if rounding(x) = 2 then the entries of
x are rounded to 2 decimal places, and are multiples of 0.01.
If all the entries of x are integers, then
rounding(x) returns -d, where
d is the smallest number of digits before the decimal point
such that round(x, digits=-d) is identical to
x.
For example if rounding(x) = -3 then the entries of
x are multiples of 1000.
If rounding(x) = 0 then the entries of x are integers
but not multiples of 10.
If all entries of x are equal to 0, the rounding is
not determined, and a value of NULL is returned.
For a point pattern (object of class "ppp")
or similar object x containing numeric spatial
coordinates, this procedure is applied to the spatial coordinates.
round.ppp
rounding(c(0.1, 0.3, 1.2))
rounding(c(1940, 1880, 2010))
rounding(0)
rounding(cells)
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