musicMCT (version 0.1.2)

ivec: Interval-class vector

Description

The classic summary of a set's dyadic subset content from pitch-class set theory. The name ivec is short for interval-class vector.

Usage

ivec(set, edo = 12)

Value

Numeric vector of length floor(edo/2)

Arguments

set

Numeric vector of pitch-classes in the set

edo

Number of unit steps in an octave. Defaults to 12.

Examples

ivec(c(0, 1, 4, 6))
ivec(c(0, 1, 3, 7))

#### Z-related sextuple in 24edo:
sextuple <- matrix(
  c(0, 1, 2, 6, 8, 10, 13, 16,
  0, 1, 3, 7, 9, 11, 12, 17,
  0, 1, 6, 8, 10, 13, 14, 16,
  0, 1, 7, 9, 11, 12, 15, 17,
  0, 1, 2, 4, 8, 10, 13, 18,
  0, 2, 3, 4, 8, 10, 15, 18), nrow=6, byrow=TRUE)
apply(sextuple, 1, ivec, edo=24) # The ic-vectors are the 6 identical columns of the output matrix