# rounding

0th

Percentile

##### Detect Numerical Rounding

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.

Keywords
spatial, math
##### Usage
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)
##### Arguments
x

A numeric vector, or an object containing numeric spatial coordinates.

##### Details

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.

##### Value

An integer.

round.ppp

##### Aliases
• rounding
• rounding.default
• rounding.ppp
• rounding.pp3
• rounding.ppx
##### Examples
# NOT RUN {
rounding(c(0.1, 0.3, 1.2))
rounding(c(1940, 1880, 2010))
rounding(0)
rounding(cells)
# }

Documentation reproduced from package spatstat, version 1.61-0, License: GPL (>= 2)

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