cern.colt.matrix.io

Class MatrixVectorReader

java.lang.Object

java.io.Reader

java.io.BufferedReader

cern.colt.matrix.io.MatrixVectorReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class MatrixVectorReader
extends BufferedReader

Reads matrices and vectors

Constructor Summary

Constructors

Constructor and Description
MatrixVectorReader(Reader in) Constructor for MatrixVectorReader
MatrixVectorReader(Reader in, int sz) Constructor for MatrixVectorReader

Method Summary

Methods

Modifier and Type	Method and Description
void	add(int num, int[] indexes) Shifts the indexes.
boolean	hasInfo() Checks if a Matrix Market header is present ("%%MatrixMarket")
void	readArray(double[] data) Reads the array data
void	readArray(double[] dataR, double[] dataI) Reads the array data.
void	readArray(float[] data) Reads the array data
void	readArray(float[] dataR, float[] dataI) Reads the array data.
void	readArray(int[] data) Reads the array data
void	readArray(long[] data) Reads the array data
MatrixSize	readArraySize() Reads in the size of an array matrix.
String[]	readComments() Reads all the comments (lines starting with '%').
void	readCoordinate(int[] index, double[] data) Reads a coordinate vector
void	readCoordinate(int[] index, double[] dataR, double[] dataI) Reads a coordinate vector.
void	readCoordinate(int[] index, float[] data) Reads a coordinate vector
void	readCoordinate(int[] index, float[] dataR, float[] dataI) Reads a coordinate vector.
void	readCoordinate(int[] index, int[] data) Reads a coordinate vector
void	readCoordinate(int[] row, int[] column, double[] data) Reads a coordinate matrix
void	readCoordinate(int[] row, int[] column, double[] dataR, double[] dataI) Reads a coordinate matrix.
void	readCoordinate(int[] row, int[] column, float[] data) Reads a coordinate matrix
void	readCoordinate(int[] row, int[] column, float[] dataR, float[] dataI) Reads a coordinate matrix.
void	readCoordinate(int[] row, int[] column, int[] data) Reads a coordinate matrix
void	readCoordinate(int[] row, int[] column, long[] data) Reads a coordinate matrix
void	readCoordinate(int[] index, long[] data) Reads a coordinate vector
MatrixSize	readCoordinateSize() Reads in the size of a coordinate matrix.
MatrixInfo	readMatrixInfo() Reads the matrix info for the Matrix Market exchange format.
MatrixSize	readMatrixSize(MatrixInfo info) Reads in the size of a matrix.
void	readPattern(int[] index) Reads a pattern vector
void	readPattern(int[] row, int[] column) Reads a pattern matrix
VectorSize	readVectorArraySize() Reads in the size of a dense vector.
VectorSize	readVectorCoordinateSize() Reads in the size of a coordinate vector.
VectorInfo	readVectorInfo() Reads the vector info for the Matrix Market exchange format.
VectorSize	readVectorSize(VectorInfo info) Reads in the size of a vector.

Methods inherited from class java.io.BufferedReader

close, mark, markSupported, read, read, readLine, ready, reset, skip

Methods inherited from class java.io.Reader

read, read

Methods inherited from class java.lang.Object

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

Constructor Detail

MatrixVectorReader

public MatrixVectorReader(Reader in)

Constructor for MatrixVectorReader

Parameters:

in - A Reader

MatrixVectorReader

public MatrixVectorReader(Reader in,
                  int sz)

Constructor for MatrixVectorReader

Parameters:

in - A Reader

sz - Input buffer size

Method Detail

add

public void add(int num,
       int[] indexes)

Shifts the indexes. Useful for converting between 0- and 1-based indicing.

Parameters:

num - Added to every index

indexes - indexes to shift

readMatrixInfo

public MatrixInfo readMatrixInfo()
                          throws IOException

Reads the matrix info for the Matrix Market exchange format. The line must consist of exactly 5 space-separated entries, the first being "%%MatrixMarket"

Throws:

IOException

readVectorInfo

public VectorInfo readVectorInfo()
                          throws IOException

Reads the vector info for the Matrix Market exchange format. The line must consist of exactly 4 space-separated entries, the first being "%%MatrixMarket"

Throws:

IOException

hasInfo

public boolean hasInfo()
                throws IOException

Checks if a Matrix Market header is present ("%%MatrixMarket")

Returns:

True if a header was found, else false

Throws:

IOException

readComments

public String[] readComments()
                      throws IOException

Reads all the comments (lines starting with '%'). Positions the reader at the first non-comment line. Can only be called after reading the matrix or vector info. The comments read does not include '%' or the newline

Throws:

IOException

readMatrixSize

public MatrixSize readMatrixSize(MatrixInfo info)
                          throws IOException

Reads in the size of a matrix. Skips initial comments

Throws:

IOException

readArraySize

public MatrixSize readArraySize()
                         throws IOException

Reads in the size of an array matrix. Skips initial comments

Throws:

IOException

readCoordinateSize

public MatrixSize readCoordinateSize()
                              throws IOException

Reads in the size of a coordinate matrix. Skips initial comments

Throws:

IOException

readVectorSize

public VectorSize readVectorSize(VectorInfo info)
                          throws IOException

Reads in the size of a vector. Skips initial comments

Throws:

IOException

readVectorArraySize

public VectorSize readVectorArraySize()
                               throws IOException

Reads in the size of a dense vector. Skips initial comments

Throws:

IOException

readVectorCoordinateSize

public VectorSize readVectorCoordinateSize()
                                    throws IOException

Reads in the size of a coordinate vector. Skips initial comments

Throws:

IOException

readArray

public void readArray(double[] data)
               throws IOException

Reads the array data

Throws:

IOException

readArray

public void readArray(float[] data)
               throws IOException

Reads the array data

Throws:

IOException

readArray

public void readArray(int[] data)
               throws IOException

Reads the array data

Throws:

IOException

readArray

public void readArray(long[] data)
               throws IOException

Reads the array data

Throws:

IOException

readArray

public void readArray(double[] dataR,
             double[] dataI)
               throws IOException

Reads the array data. The first array will contain real entries, while the second contain imaginary entries

Throws:

IOException

readArray

public void readArray(float[] dataR,
             float[] dataI)
               throws IOException

Reads the array data. The first array will contain real entries, while the second contain imaginary entries

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  double[] data)
                    throws IOException

Reads a coordinate vector

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  float[] data)
                    throws IOException

Reads a coordinate vector

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  int[] data)
                    throws IOException

Reads a coordinate vector

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  long[] data)
                    throws IOException

Reads a coordinate vector

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  float[] dataR,
                  float[] dataI)
                    throws IOException

Reads a coordinate vector. First data array contains real entries, and the second contains imaginary entries

Throws:

IOException

readCoordinate

public void readCoordinate(int[] index,
                  double[] dataR,
                  double[] dataI)
                    throws IOException

Reads a coordinate vector. First data array contains real entries, and the second contains imaginary entries

Throws:

IOException

readPattern

public void readPattern(int[] index)
                 throws IOException

Reads a pattern vector

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  double[] data)
                    throws IOException

Reads a coordinate matrix

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  float[] data)
                    throws IOException

Reads a coordinate matrix

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  int[] data)
                    throws IOException

Reads a coordinate matrix

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  long[] data)
                    throws IOException

Reads a coordinate matrix

Throws:

IOException

readPattern

public void readPattern(int[] row,
               int[] column)
                 throws IOException

Reads a pattern matrix

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  double[] dataR,
                  double[] dataI)
                    throws IOException

Reads a coordinate matrix. First data array contains real entries, and the second contains imaginary entries

Throws:

IOException

readCoordinate

public void readCoordinate(int[] row,
                  int[] column,
                  float[] dataR,
                  float[] dataI)
                    throws IOException

Reads a coordinate matrix. First data array contains real entries, and the second contains imaginary entries

Throws:

IOException