org.apache.spark.mllib.linalg.distributed

Class CoordinateMatrix

java.lang.Object

org.apache.spark.mllib.linalg.distributed.CoordinateMatrix

All Implemented Interfaces:

java.io.Serializable, DistributedMatrix

public class CoordinateMatrix
extends java.lang.Object
implements DistributedMatrix

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CoordinateMatrix(RDD<MatrixEntry> entries)
CoordinateMatrix(RDD<MatrixEntry> entries, long nRows, long nCols)

Method Summary

Methods

Modifier and Type	Method and Description
RDD<MatrixEntry>	entries()
long	numCols() Gets or computes the number of columns.
long	numRows() Gets or computes the number of rows.
BlockMatrix	toBlockMatrix()
BlockMatrix	toBlockMatrix(int rowsPerBlock, int colsPerBlock)
IndexedRowMatrix	toIndexedRowMatrix()
RowMatrix	toRowMatrix()
CoordinateMatrix	transpose()

Methods inherited from class java.lang.Object

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

Constructor Detail

CoordinateMatrix

public CoordinateMatrix(RDD<MatrixEntry> entries,
                long nRows,
                long nCols)

CoordinateMatrix

public CoordinateMatrix(RDD<MatrixEntry> entries)

Method Detail

entries

public RDD<MatrixEntry> entries()

numCols

public long numCols()

Description copied from interface: DistributedMatrix

Gets or computes the number of columns.

Specified by:

numCols in interface DistributedMatrix

numRows

public long numRows()

Description copied from interface: DistributedMatrix

Gets or computes the number of rows.

Specified by:

numRows in interface DistributedMatrix

transpose

public CoordinateMatrix transpose()

toIndexedRowMatrix

public IndexedRowMatrix toIndexedRowMatrix()

toRowMatrix

public RowMatrix toRowMatrix()

toBlockMatrix

public BlockMatrix toBlockMatrix()

toBlockMatrix

public BlockMatrix toBlockMatrix(int rowsPerBlock,
                        int colsPerBlock)