Example usage for Java org.apache.commons.math3.linear RealMatrix fields, constructors, methods, implement or subclass
The text is from its open source code.
| RealMatrix | add(RealMatrix m) Returns the sum of this and m . |
| void | addToEntry(int row, int column, double increment) Adds (in place) the specified value to the specified entry of this matrix. |
| RealMatrix | copy() Returns a (deep) copy of this. |
| void | copySubMatrix(int[] selectedRows, int[] selectedColumns, double[][] destination) Copy a submatrix. |
| void | copySubMatrix(int startRow, int endRow, int startColumn, int endColumn, double[][] destination) Copy a submatrix. |
| RealMatrix | createMatrix(int rowDimension, int columnDimension) Create a new RealMatrix of the same type as the instance with the supplied row and column dimensions. |
| Class | getClass() Returns the runtime class of this Object . |
| double[] | getColumn(int column) Get the entries at the given column index as an array. |
| int | getColumnDimension() Returns the number of columns in the matrix. |
| RealMatrix | getColumnMatrix(int column) Get the entries at the given column index as a column matrix. |
| RealVector | getColumnVector(int column) Get the entries at the given column index as a vector. |
| double[][] | getData() Returns matrix entries as a two-dimensional array. |
| double | getEntry(int row, int column) Get the entry in the specified row and column. |
| double | getFrobeniusNorm() Returns the Frobenius norm of the matrix. |
| double | getNorm() Returns the maximum absolute row sum norm of the matrix. |
| double[] | getRow(int row) Get the entries at the given row index. |
| int | getRowDimension() Returns the number of rows in the matrix. |
| RealMatrix | getRowMatrix(int row) Get the entries at the given row index as a row matrix. |
| RealVector | getRowVector(int row) Returns the entries in row number row as a vector. |
| RealMatrix | getSubMatrix(int startRow, int endRow, int startColumn, int endColumn) Gets a submatrix. |
| RealMatrix | getSubMatrix(int[] selectedRows, int[] selectedColumns) Gets a submatrix. |
| double | getTrace() Returns the trace of the matrix (the sum of the elements on the main diagonal). |
| boolean | isSquare() Is this a square matrix? |
| RealMatrix | multiply(RealMatrix m) Returns the result of postmultiplying this by m . |
| void | multiplyEntry(int row, int column, double factor) Multiplies (in place) the specified entry of this matrix by the specified value. |
| double[] | operate(double[] v) Returns the result of multiplying this by the vector v . |
| RealVector | operate(RealVector v) Returns the result of multiplying this by the vector v . |
| RealMatrix | power(final int p) Returns the result of multiplying this with itself p times. |
| RealMatrix | preMultiply(RealMatrix m) Returns the result of premultiplying this by m . |
| double[] | preMultiply(double[] v) Returns the (row) vector result of premultiplying this by the vector v . |
| RealVector | preMultiply(RealVector v) Returns the (row) vector result of premultiplying this by the vector v . |
| RealMatrix | scalarAdd(double d) Returns the result of adding d to each entry of this . |
| RealMatrix | scalarMultiply(double d) Returns the result of multiplying each entry of this by d . |
| void | setColumn(int column, double[] array) Sets the specified column of this matrix to the entries of the specified array . |
| void | setColumnMatrix(int column, RealMatrix matrix) Sets the specified column of this matrix to the entries of the specified column matrix . |
| void | setColumnVector(int column, RealVector vector) Sets the specified column of this matrix to the entries of the specified vector . |
| void | setEntry(int row, int column, double value) Set the entry in the specified row and column. |
| void | setRow(int row, double[] array) Sets the specified row of this matrix to the entries of the specified array . |
| void | setRowMatrix(int row, RealMatrix matrix) Sets the specified row of this matrix to the entries of the specified row matrix . |
| void | setRowVector(int row, RealVector vector) Sets the specified row of this matrix to the entries of the specified vector . |
| void | setSubMatrix(double[][] subMatrix, int row, int column) Replace the submatrix starting at row, column using data in the input subMatrix array. |
| RealMatrix | subtract(RealMatrix m) Returns this minus m . |
| String | toString() Returns a string representation of the object. |
| RealMatrix | transpose() Returns the transpose of this matrix. |
| double | walkInColumnOrder(RealMatrixChangingVisitor visitor) Visit (and possibly change) all matrix entries in column order. |
| double | walkInColumnOrder(RealMatrixPreservingVisitor visitor) Visit (but don't change) all matrix entries in column order. |
| double | walkInOptimizedOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) Visit (and possibly change) some matrix entries using the fastest possible order. |
| double | walkInOptimizedOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) Visit (but don't change) some matrix entries using the fastest possible order. |
| double | walkInOptimizedOrder(RealMatrixChangingVisitor visitor) Visit (and possibly change) all matrix entries using the fastest possible order. |
| double | walkInOptimizedOrder(RealMatrixPreservingVisitor visitor) Visit (but don't change) all matrix entries using the fastest possible order. |
| double | walkInRowOrder(RealMatrixChangingVisitor visitor) Visit (and possibly change) all matrix entries in row order. |
| double | walkInRowOrder(RealMatrixPreservingVisitor visitor) Visit (but don't change) all matrix entries in row order. |