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## no.uib.cipr.matrix.io
Class MatrixVectorReader

    java.lang.Object
      java.io.Reader
          java.io.BufferedReader
              no.uib.cipr.matrix.io.MatrixVectorReader

All Implemented Interfaces:
  java.io.Closeable, java.lang.Readable

    public class MatrixVectorReader

extends java.io.BufferedReader

Reads matrices and vectors

Field Summary

Fields inherited from class java.io.Reader
`lock`

Constructor Summary
`MatrixVectorReader(java.io.Reader in)` Constructor for MatrixVectorReader
`MatrixVectorReader(java.io.Reader in, int sz)` Constructor for MatrixVectorReader

Method Summary
`void` | `add(int num, int[] indices)` Shifts the indices.
`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.
`java.lang.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
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### MatrixVectorReader

    public MatrixVectorReader(java.io.Reader in)

  Constructor for MatrixVectorReader

  Parameters:
    `in` - A Reader

### MatrixVectorReader

    public MatrixVectorReader(java.io.Reader in,
                              int sz)

  Constructor for MatrixVectorReader

  Parameters:
    `in` - A Reader
    `sz` - Input buffer size

Method Detail

### add

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

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

  Parameters:
    `num` - Added to every index
    `indices` - Indices to shift

### readMatrixInfo

    public MatrixInfo readMatrixInfo()
                              throws java.io.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:
    `java.io.IOException`

### readVectorInfo

    public VectorInfo readVectorInfo()
                              throws java.io.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:
    `java.io.IOException`

### hasInfo

    public boolean hasInfo()
                    throws java.io.IOException

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

  Returns:
    True if a header was found, else false
  Throws:
    `java.io.IOException`

### readComments

    public java.lang.String[] readComments()
                                    throws java.io.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:
    `java.io.IOException`

### readMatrixSize

    public MatrixSize readMatrixSize(MatrixInfo info)
                              throws java.io.IOException

  Reads in the size of a matrix. Skips initial comments

  Throws:
    `java.io.IOException`

### readArraySize

    public MatrixSize readArraySize()
                             throws java.io.IOException

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

  Throws:
    `java.io.IOException`

### readCoordinateSize

    public MatrixSize readCoordinateSize()
                                  throws java.io.IOException

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

  Throws:
    `java.io.IOException`

### readVectorSize

    public VectorSize readVectorSize(VectorInfo info)
                              throws java.io.IOException

  Reads in the size of a vector. Skips initial comments

  Throws:
    `java.io.IOException`

### readVectorArraySize

    public VectorSize readVectorArraySize()
                                   throws java.io.IOException

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

  Throws:
    `java.io.IOException`

### readVectorCoordinateSize

    public VectorSize readVectorCoordinateSize()
                                        throws java.io.IOException

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

  Throws:
    `java.io.IOException`

### readArray

    public void readArray(double[] data)
                   throws java.io.IOException

  Reads the array data

  Throws:
    `java.io.IOException`

### readArray

    public void readArray(float[] data)
                   throws java.io.IOException

  Reads the array data

  Throws:
    `java.io.IOException`

### readArray

    public void readArray(int[] data)
                   throws java.io.IOException

  Reads the array data

  Throws:
    `java.io.IOException`

### readArray

    public void readArray(long[] data)
                   throws java.io.IOException

  Reads the array data

  Throws:
    `java.io.IOException`

### readArray

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

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

  Throws:
    `java.io.IOException`

### readArray

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

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

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate vector

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate vector

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate vector

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate vector

  Throws:
    `java.io.IOException`

### readCoordinate

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

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

  Throws:
    `java.io.IOException`

### readCoordinate

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

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

  Throws:
    `java.io.IOException`

### readPattern

    public void readPattern(int[] index)
                     throws java.io.IOException

  Reads a pattern vector

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate matrix

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate matrix

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate matrix

  Throws:
    `java.io.IOException`

### readCoordinate

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

  Reads a coordinate matrix

  Throws:
    `java.io.IOException`

### readPattern

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

  Reads a pattern matrix

  Throws:
    `java.io.IOException`

### readCoordinate

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

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

  Throws:
    `java.io.IOException`

### readCoordinate

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

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

  Throws:
    `java.io.IOException`

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