Package org.djunits.value.vdouble.matrix

Class DOUBLEMATRIX

java.lang.Object
org.djunits.value.vdouble.matrix.DOUBLEMATRIX
public final class DOUBLEMATRIX
extends Object
DOUBLEMATRIX for creating different test matrices. Matrix values from a double array are stored as m[row][column].

Copyright (c) 2019-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See DJUNITS License.

Author:
Alexander Verbraeck

  • Method Summary

    Modifier and Type Method Description
    static double[][] denseRectArrays​(int rows, int cols)
    Return a rectangular array with all values != 0.
    static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>>
    S[][]    		 denseRectScalarArrays​(int rows, int cols, Class<S> scalarClass)
    Return a rectangular array with all values != 0.
    static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>>
    Collection<org.djunits.value.vdouble.matrix.base.DoubleSparseValue<U,​S>>    		 denseRectTuples​(int rows, int cols, Class<S> scalarClass)
    Return a rectangular array with all values != 0.
    static double[][] sparseRectArrays​(int rows, int cols)
    Return a rectangular array with only nonzero values on the diagonal.
    static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>>
    S[][]    		 sparseRectScalarArrays​(int rows, int cols, Class<S> scalarClass)
    Return a rectangular array with only nonzero values on the diagonal.
    static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>>
    Collection<org.djunits.value.vdouble.matrix.base.DoubleSparseValue<U,​S>>    		 sparseRectTuples​(int rows, int cols, Class<S> scalarClass)
    Return a rectangular array with only nonzero values on the diagonal.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • denseRectArrays

      public static double[][] denseRectArrays​(int rows, int cols)
      Return a rectangular array with all values != 0.
      Parameters:
      rows - the number of rows
      cols - the number of columns
      Returns:
      an array with all nonzero values

    • sparseRectArrays

      public static double[][] sparseRectArrays​(int rows, int cols)
      Return a rectangular array with only nonzero values on the diagonal.
      Parameters:
      rows - the number of rows
      cols - the number of columns
      Returns:
      an array with only nonzero values on the diagonal

    • denseRectScalarArrays

      public static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>> S[][] denseRectScalarArrays​(int rows, int cols, Class<S> scalarClass)
      Return a rectangular array with all values != 0.
      Type Parameters:
      U - the unit type
      S - the scalar type
      Parameters:
      rows - the number of rows
      cols - the number of columns
      scalarClass - the class of scalars to use
      Returns:
      an array with all nonzero values

    • sparseRectScalarArrays

      public static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>> S[][] sparseRectScalarArrays​(int rows, int cols, Class<S> scalarClass)
      Return a rectangular array with only nonzero values on the diagonal.
      Type Parameters:
      U - the unit type
      S - the scalar type
      Parameters:
      rows - the number of rows
      cols - the number of columns
      scalarClass - the class of scalars to use
      Returns:
      an array with only nonzero values on the diagonal

    • denseRectTuples

      public static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>> Collection<org.djunits.value.vdouble.matrix.base.DoubleSparseValue<U,​S>> denseRectTuples​(int rows, int cols, Class<S> scalarClass)
      Return a rectangular array with all values != 0.
      Type Parameters:
      U - the unit type
      S - the scalar type
      Parameters:
      rows - the number of rows
      cols - the number of columns
      scalarClass - the class of scalars to use
      Returns:
      an array with all nonzero values

    • sparseRectTuples

      public static <U extends org.djunits.unit.Unit<U>,​ S extends org.djunits.value.vdouble.scalar.base.DoubleScalarInterface<U,​ S>> Collection<org.djunits.value.vdouble.matrix.base.DoubleSparseValue<U,​S>> sparseRectTuples​(int rows, int cols, Class<S> scalarClass)
      Return a rectangular array with only nonzero values on the diagonal.
      Type Parameters:
      U - the unit type
      S - the scalar type
      Parameters:
      rows - the number of rows
      cols - the number of columns
      scalarClass - the class of scalars to use
      Returns:
      an array with only nonzero values on the diagonal