octmode
Display Integers in Octal or Hexadecimal
Description
Classes to make the display format of integers be base 8 (octal)
or base 16 (hexadecimal) instead of the usual base 10.
Usage
as.octmode(x)
## S3 method for class 'octmode':
format(x, width = NULL, ...)
## S3 method for class 'octmode':
print(x, ...)
## S3 method for class 'octmode':
as.character(x, ...)
## S3 method for class 'octmode':
x[i]
as.hexmode(x)
## S3 method for class 'hexmode':
format(x, width = NULL, upper.case = FALSE, ...)
## S3 method for class 'hexmode':
print(x, ...)
## S3 method for class 'hexmode':
as.character(x, ...)
## S3 method for class 'hexmode':
x[i]
Arguments
| x |
An integer or character vector. If character, it should be the
octal or hexadecimal representation of an integer (using the letters
"A" through "F", upper or lower case, for the hex
digits 10 through 15).
|
| width |
When converting to character data, make each string at least this long.
This is used directly by format, but as.character will pass it on to format.
|
| uppercase |
If FALSE, the default, use lowercase "a" through "f"
to represent hexadecimal numbers. If TRUE use uppercase "A" through "F".
|
Details
Any vector with the class "octmode" or "hexmode" will be specially dealt
with by these methods. Do not call the methods by their full names:
use, e.g., format(h) and do not use format.hexmode(h) if
h was made with as.hexmode(11:20).
There are also special octmode and hexmode methods for the usually
logical operations &, |, !, and xor.
These do bitwise operations on the underlying integers in the octmode
and hexmode objects instead of the the usual Boolean ones.
Other functions will treat "octmode" or "hexmode" objects the
same as their underlying "integer" or "integer" equivalents.
Many will pass on the "octmode" or "hexmode" class to their
outputs.
Value
as.octmode returns its input with the class "octmode" added,
as.hexmode returns its input with the class "hexmode" added.
The methods for print, format, as.character, and [
return the standard sorts of things for those generics.
See Also
Examples
as.octmode(7:17)
as.integer(as.octmode("27"))
format(as.hexmode(c(-2, -1, 0, 10, 20)), width=4)