Exemplo n.º 1
0
 /**
  * Compute the mean square residue.
  *
  * @param mat Data matrix
  * @return mean squared residue
  */
 protected double computeMeanSquaredDeviation(final double[][] mat) {
   final Mean msr = new Mean();
   visitAll(
       mat,
       CellVisitor.SELECTED,
       new CellVisitor() {
         @Override
         public boolean visit(double val, int row, int col, boolean selrow, boolean selcol) {
           assert (selrow && selcol);
           double v = val - rowM[row] - colM[col] + allM;
           msr.put(v * v);
           return false;
         }
       });
   residue = msr.getMean();
   return residue;
 }
Exemplo n.º 2
0
 /**
  * Computes the <b>mean column residue</b> of the given <code>col</code>.
  *
  * @param col The column who's residue should be computed.
  * @return The row residue of the given <code>col</code>um.
  */
 protected double computeColResidue(final double[][] mat, final int col) {
   final double bias = colM[col] - allM;
   final Mean colResidue = new Mean();
   visitColumn(
       mat,
       col,
       CellVisitor.SELECTED,
       new CellVisitor() {
         @Override
         public boolean visit(double val, int row, int col, boolean selrow, boolean selcol) {
           assert (selrow);
           final double rowMean = rowM[row];
           double v = val - rowMean - bias;
           colResidue.put(v * v);
           return false;
         }
       });
   return colResidue.getMean();
 }
Exemplo n.º 3
0
 /**
  * Computes the <b>mean row residue</b> of the given <code>row</code>.
  *
  * @param mat Data matrix
  * @param row The row who's residue should be computed.
  * @param rowinverted Indicates if the row should be considered inverted.
  * @return The row residue of the given <code>row</code>.
  */
 protected double computeRowResidue(final double[][] mat, int row, final boolean rowinverted) {
   final Mean rowResidue = new Mean();
   visitRow(
       mat,
       row,
       CellVisitor.SELECTED,
       new CellVisitor() {
         @Override
         public boolean visit(double val, int row, int col, boolean selrow, boolean selcol) {
           assert (selcol);
           final double rowMean = rowM[row];
           final double colMean = colM[col];
           double v = ((!rowinverted) ? (val - rowMean) : (rowMean - val)) - colMean + allM;
           rowResidue.put(v * v);
           return false;
         }
       });
   return rowResidue.getMean();
 }