Package org.ejml.masks

Class DMaskSparseStructural

java.lang.Object
org.ejml.masks.Mask
org.ejml.masks.DMaskSparseStructural
public class DMaskSparseStructural extends Mask
Mask implementation which checks if the entry is assigned in the sparse matrix. The actual stored values are disregarded.

  • Constructor Details

    • DMaskSparseStructural

      public DMaskSparseStructural(DMatrixSparseCSC matrix, boolean negated, @Nullable @Nullable IGrowArray gw, boolean indexFirstColumn)

  • Method Details

    • isSet

      public boolean isSet(int row, int col)
      Specified by:
      isSet in class Mask
      Returns:
      Whether the matrix entry is set in the mask

    • isSet

      public boolean isSet(int idx)
      Specified by:
      isSet in class Mask
      Returns:
      Whether the vector entry is set in the mask

    • getNumCols

      public int getNumCols()
      Specified by:
      getNumCols in class Mask
      Returns:
      The number of columns of the wrapped matrix

    • getNumRows

      public int getNumRows()
      Specified by:
      getNumRows in class Mask
      Returns:
      The number of rows of the wrapped matrix

    • setIndexColumn

      public void setIndexColumn(int col)
      Description copied from class: Mask
      For faster access on a specific column (on at a time) ! Only useful for sparse masks
      Specified by:
      setIndexColumn in class Mask
      Parameters:
      col - column to index

    • maxMaskedEntries

      public int maxMaskedEntries()
      Description copied from class: Mask
      Pessimistic estimation of entries set in the mask
      Specified by:
      maxMaskedEntries in class Mask
      Returns:
      Maximum number of set entries in mask