abs
Absolute Value
Description
Returns the absolute value of each element of the input.
Usage
abs(x)
Arguments
| x |
an object with mode "logical", "numeric" or "complex".
Missing values (NAs) are allowed.
|
Details
This function is a member of the Math group of generic functions.
Value
returns an object like x, with the absolute value of each data value
taken. If x is a complex number, its modulus is returned.
That is, Mod(x).
Classes
This function is 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 retains 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
abs(rnorm(10)) # vector of length 10
abs(matrix(rnorm(10), 2)) # 2 by 5 matrix
abs(c(-2+4i, 5-3.2i)) # complex number.
# [1] 4.472136 5.936329
x <- rnorm(10) > 0 # logical vector
abs(x) # result is numeric vector