rounding {spatstat.univar}

Detect Numerical Rounding

Description

Given a numeric vector, determine whether the values have been rounded to a certain number of decimal places.

Usage

rounding(x)

## Default S3 method:
rounding(x)

Arguments

x

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

Details

The function rounding is generic. Its purpose is to determine whether numerical values have been rounded to a certain number of decimal places.

The spatstat family of packages provides methods for rounding for various spatial objects.

For a numeric vector x, the default method rounding.default determines whether the values in x 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, a value of 0 is returned.

Value

An integer.

Author(s)

Adrian Baddeley [e-mail] and Rolf Turner [e-mail]

See Also

round.ppp in package spatstat.geom.

Examples

   rounding(c(0.1, 0.3, 1.2))
   rounding(c(1940, 1880, 2010))
   rounding(0)