Class DisjunctMatrix

java.lang.Object

com.knezevic.edaf.v3.problems.discrete.disjunct.DisjunctMatrix

public final class DisjunctMatrix
extends Object

Immutable binary matrix view optimized for column-support operations used by disjunct/resolvable/almost-disjunct definitions.

The matrix is represented by support bitsets of each column: supp(x_j) = { i in [M] : A[i,j] = 1 }.

Method Summary

Modifier and Type	Method	Description
int	columns()
static DisjunctMatrix	fromBitString(BitString genotype, int rows, int columns)	Builds matrix from a bitstring encoded in column-major layout: bits [j * M, j * M + 1, ..., j * M + (M-1)] correspond to column j.
static DisjunctMatrix	fromDense(boolean[][] values)	Builds matrix from dense row-major values where values[row][column] is matrix entry.
int	rows()
BitSet	support(int columnIndex)	Returns a defensive copy of support bitset for one column.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

fromBitString

public static DisjunctMatrix fromBitString(BitString genotype,
 int rows,
 int columns)

Builds matrix from a bitstring encoded in column-major layout: bits [j * M, j * M + 1, ..., j * M + (M-1)] correspond to column j.

fromDense

public static DisjunctMatrix fromDense(boolean[][] values)

Builds matrix from dense row-major values where values[row][column] is matrix entry.

rows

public int rows()

columns

public int columns()

support

public BitSet support(int columnIndex)

Returns a defensive copy of support bitset for one column.