ceiling
Integer Values
Description
Creates integers from floating point numbers by going to the next
larger integer (ceiling), the next smallest (floor), or the next
integer closer to zero (trunc).
Usage
ceiling(x)
floor(x)
trunc(x, ...)
Arguments
| x |
a numeric value. Missing values (NAs) are allowed.
|
| ... |
additional arguments.
|
Details
These are members of the Math group of generic functions.
Value
returns a vector of the same length and storage mode as
x.
| ceiling | contains the smallest integers >= x. |
| floor | contains the largest integers <= x. |
| trunc | contains the closest integers to x between
x and 0, inclusive. That is, trunc(1.5) is 1,
and trunc(-1.5) is --1.
(trunc is like floor for positive values and like
ceiling for negative values.) |
Classes
This function will be used as the default method for classes that do not inherit a specific method for the
function or for the Math group of functions.
The result will retain the class and the attributes.
If this behavior is not appropriate,
the designer of the class should provide a method
for the function or for the Math group
See Also
Examples
ceiling(c(-1.9, -1.1, 1.1, 1.9)) # returns c(-1,-1,2,2)
floor(c(-1.9, -1.1, 1.1, 1.9)) # returns c(-2,-2,1,1)
trunc(c(-1.9, -1.1, 1.1, 1.9)) # returns c(-1,-1,1,1)