Package org.apache.sysds.runtime.frame.data.lib

Interface MatrixBlockFromFrame

public interface MatrixBlockFromFrame

Field Summary

Fields

Modifier and Type	Field	Description
static int	blocksizeIJ
static org.apache.commons.logging.Log	LOG

Method Summary

Static Methods

Modifier and Type	Method	Description
static MatrixBlock	convertToMatrixBlock(FrameBlock frame, int k)	Converts a frame block with arbitrary schema into a matrix block.
static MatrixBlock	convertToMatrixBlock(FrameBlock frame, MatrixBlock ret, int k)	Converts a frame block with arbitrary schema into a matrix block.

Field Detail

LOG

static final org.apache.commons.logging.Log LOG

blocksizeIJ

static final int blocksizeIJ

See Also:

Constant Field Values

Method Detail

convertToMatrixBlock

static MatrixBlock convertToMatrixBlock(FrameBlock frame,
                                        int k)

Converts a frame block with arbitrary schema into a matrix block. Since matrix block only supports value type double, we do a best effort conversion of non-double types which might result in errors for non-numerical data.

Parameters:

frame - Frame block to convert

k - The parallelization degree

Returns:

MatrixBlock

convertToMatrixBlock

static MatrixBlock convertToMatrixBlock(FrameBlock frame,
                                        MatrixBlock ret,
                                        int k)

Converts a frame block with arbitrary schema into a matrix block. Since matrix block only supports value type double, we do a best effort conversion of non-double types which might result in errors for non-numerical data.

Parameters:

frame - FrameBlock to convert

ret - The returned MatrixBlock

k - The parallelization degree

Returns:

MatrixBlock