library("broadcast")
x.dim <- c(4:2)
x.len <- prod(x.dim)
x.data <- as.raw(0:10)
y.data <- as.raw(10:0)
x <- array(x.data, x.dim)
y <- array(y.data, c(4,1,1))
bc.bit(x, y, "&")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 00 00 08
## [2,] 01 01 09
## [3,] 00 00 08
## [4,] 03 07 00
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 00 00 08
## [2,] 00 00 08
## [3,] 00 00 00
## [4,] 04 00 01
bc.bit(x, y, "|")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 0a 0e 0a
## [2,] 09 0d 09
## [3,] 0a 0e 0a
## [4,] 07 07 07
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 0b 0f 0b
## [2,] 0b 0f 0b
## [3,] 0b 0f 08
## [4,] 07 0f 07
bc.bit(x, y, "xor")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 0a 0e 02
## [2,] 08 0c 00
## [3,] 0a 0e 02
## [4,] 04 00 07
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 0b 0f 03
## [2,] 0b 0f 03
## [3,] 0b 0f 08
## [4,] 03 0f 06bc.bit
Broadcasted Bit-wise Operations
Description
The bc.bit() function performs broadcasted bit-wise operations on pairs of arrays, where both arrays are of type raw or both arrays are of type integer.
Usage
bc.bit(x, y, op)
Arguments
x, y
|
conformable raw or integer (32 bit) vectors or arrays. |
op
|
a single string, giving the operator. Supported bit-wise operators: &, |, xor, nand, ==, !=, <, >, <=, >=, <<, >>. |
Details
The "&", "|", "xor", and "nand" operators given in bc.bit() perform BIT-WISE AND, OR, XOR, and NAND operations, respectively.
The relational operators given in bc.bit() perform BIT-WISE relational operations:
-
"==" is equivalent to bit-wise
(x & y) | (!x & !y), but faster; -
"!=" is equivalent to bit-wise
xor(x, y); -
"<" is equivalent to bit-wise
(!x & y), but faster; -
">" is equivalent to bit-wise
(x & !y), but faster; -
"<=" is equivalent to bit-wise
(!x & y) | (y == x), but faster; -
">=" is equivalent to bit-wise
(x & !y) | (y == x), but faster.
The "<<" and ">>" operators perform bit-wise left-shift and right-shift, respectively, on x by unit y.
For these shift operations, y being larger than the number of bits of x results in an error.
Shift operations are only supported for type of raw.
Value
For bit-wise operators:
An array of the same type as x and y, as a result of the broadcasted bit-wise operation.