binary: Binary digit.

In rdiversity: Measurement and Partitioning of Similarity-Sensitive Biodiversity

Binary digit.

Description

Create objects of type binary.

Usage

binary(n, signed=FALSE, littleEndian=FALSE)

Arguments

n	length of vector. Number of bits
signed	TRUE or FALSE. Unsigned by default. (two's complement)
littleEndian	if TRUE. Big Endian if FALSE.

Details

The binary number is represented by a logical vector. The bit order usually follows the same endianess as the byte order. How to read:

• Little Endian (LSB) —> (MSB)

• Big Endian (MSB) <— (LSB)

The Big Endian endianess stores its MSB at the lowest adress. The Little Endian endianess stores its MSB at the highest adress.

e.g. b <-binary(8).

• "Little Endian" : MSB at b[1] and LSB at b[8].

• "Big Endian" : LSB at b[1] and MSB at b[8].

No floating-point support.

Value

a vector of class binary of length n. By default filled with zeros(0).

See Also

as.binary and is.binary.

Examples

b <- rdiversity:::binary(8)
summary(b)
b <- rdiversity:::binary(16, signed=TRUE)
summary(b)
b <- rdiversity:::binary(32, littleEndian=TRUE)
summary(b)

rdiversity documentation built on May 6, 2022, 9:06 a.m.