Examples with Pair org.knime.core.util.Pair used on opensource projects

Example 26 with Pair

use of org.knime.core.util.Pair in project knime-core by knime.

the class CollectionSplitNodeModel method createColumnRearranger.

/**
 * Create rearrange object, setup the table.
 */
private Pair<ColumnRearranger, SplitCellFactory> createColumnRearranger(final DataTableSpec spec, final DataColumnSpec[] newColSpecs) throws InvalidSettingsException {
    int colIndex = getTargetColIndex(spec);
    SplitCellFactory fac = new SplitCellFactory(colIndex, newColSpecs);
    ColumnRearranger arranger = new ColumnRearranger(spec);
    if (m_settings.isReplaceInputColumn()) {
        arranger.remove(colIndex);
        arranger.insertAt(colIndex, fac);
    } else {
        arranger.append(fac);
    }
    return new Pair<ColumnRearranger, SplitCellFactory>(arranger, fac);
}

Example 27 with Pair

use of org.knime.core.util.Pair in project knime-core by knime.

the class AppendVariableToTable2NodeModel method createColumnRearranger.

@Override
protected ColumnRearranger createColumnRearranger(final DataTableSpec spec) throws InvalidSettingsException {
    ColumnRearranger arranger = new ColumnRearranger(spec);
    Set<String> nameHash = new HashSet<String>();
    for (DataColumnSpec c : spec) {
        nameHash.add(c.getName());
    }
    List<Pair<String, FlowVariable.Type>> vars = getVariablesOfInterest();
    if (vars.isEmpty()) {
        throw new InvalidSettingsException("No variables selected");
    }
    DataColumnSpec[] specs = new DataColumnSpec[vars.size()];
    final DataCell[] values = new DataCell[vars.size()];
    for (int i = 0; i < vars.size(); i++) {
        Pair<String, FlowVariable.Type> c = vars.get(i);
        String name = c.getFirst();
        final DataType type;
        switch(c.getSecond()) {
            case DOUBLE:
                type = DoubleCell.TYPE;
                try {
                    double dValue = peekFlowVariableDouble(name);
                    values[i] = new DoubleCell(dValue);
                } catch (NoSuchElementException e) {
                    throw new InvalidSettingsException("No such flow variable (of type double): " + name);
                }
                break;
            case INTEGER:
                type = IntCell.TYPE;
                try {
                    int iValue = peekFlowVariableInt(name);
                    values[i] = new IntCell(iValue);
                } catch (NoSuchElementException e) {
                    throw new InvalidSettingsException("No such flow variable (of type int): " + name);
                }
                break;
            case STRING:
                type = StringCell.TYPE;
                try {
                    String sValue = peekFlowVariableString(name);
                    sValue = sValue == null ? "" : sValue;
                    values[i] = new StringCell(sValue);
                } catch (NoSuchElementException e) {
                    throw new InvalidSettingsException("No such flow variable (of type String): " + name);
                }
                break;
            default:
                throw new InvalidSettingsException("Unsupported variable type: " + c.getSecond());
        }
        if (nameHash.contains(name) && !name.toLowerCase().endsWith("(variable)")) {
            name = name.concat(" (variable)");
        }
        String newName = name;
        int uniquifier = 1;
        while (!nameHash.add(newName)) {
            newName = name + " (#" + (uniquifier++) + ")";
        }
        specs[i] = new DataColumnSpecCreator(newName, type).createSpec();
    }
    arranger.append(new AbstractCellFactory(specs) {

        /**
         * {@inheritDoc}
         */
        @Override
        public DataCell[] getCells(final DataRow row) {
            return values;
        }
    });
    return arranger;
}

Example 28 with Pair

use of org.knime.core.util.Pair in project knime-core by knime.

the class RegressionContent method getValues.

/**
 * Returns the parameters mapped to the values of the given matrix.
 *
 * @param matrix the matrix with the raw data
 * @return the variables and the exponents mapped to values of the given matrix
 * @since 3.4
 */
protected Map<Pair<String, Integer>, Double> getValues(final RealMatrix matrix) {
    Map<Pair<String, Integer>, Double> coefficients = new HashMap<Pair<String, Integer>, Double>();
    int p = m_includeConstant ? 1 : 0;
    for (String colName : m_outSpec.getLearningFields()) {
        if (m_factorList.contains(colName)) {
            Iterator<DataCell> designIter = m_factorDomainValues.get(colName).iterator();
            if (!designIter.hasNext()) {
                continue;
            }
            // Omit first
            designIter.next();
            while (designIter.hasNext()) {
                DataCell dvValue = designIter.next();
                String variable = colName + "=" + dvValue;
                double coeff = matrix.getEntry(0, p);
                coefficients.put(Pair.create(variable, 1), coeff);
                p++;
            }
        } else {
            String variable = colName;
            double coeff = matrix.getEntry(0, p);
            coefficients.put(Pair.create(variable, 1), coeff);
            p++;
        }
    }
    return coefficients;
}

Example 29 with Pair

use of org.knime.core.util.Pair in project knime-core by knime.

the class RegressionContent method createTablePortObject.

/**
 * Creates a BufferedDataTable with the estimated parameters and statistics.
 *
 * @param exec The execution context
 * @return a port object
 */
public BufferedDataTable createTablePortObject(final ExecutionContext exec) {
    DataTableSpec tableOutSpec = outputTableSpec();
    BufferedDataContainer dc = exec.createDataContainer(tableOutSpec);
    List<String> parameters = this.getParameters();
    int c = 0;
    Map<Pair<String, Integer>, Double> coefficients = this.getCoefficients();
    Map<Pair<String, Integer>, Double> stdErrs = this.getStandardErrors();
    Map<Pair<String, Integer>, Double> zScores = this.getTValues();
    Map<Pair<String, Integer>, Double> pValues = this.getPValues();
    for (int degree = 1; degree <= m_maxExponent; ++degree) {
        for (String parameter : parameters) {
            Pair<String, Integer> key = Pair.create(parameter, degree);
            List<DataCell> cells = new ArrayList<DataCell>();
            cells.add(new StringCell(parameter));
            addDegree(degree, cells);
            cells.add(value(coefficients.get(key)));
            cells.add(value(stdErrs.get(key)));
            cells.add(value(zScores.get(key)));
            cells.add(value(pValues.get(key)));
            c++;
            dc.addRowToTable(new DefaultRow("Row" + c, cells));
        }
    }
    if (m_includeConstant) {
        List<DataCell> cells = new ArrayList<DataCell>();
        cells.add(new StringCell("Intercept"));
        addDegree(0, cells);
        cells.add(value(this.getIntercept()));
        cells.add(value(this.getInterceptStdErr()));
        cells.add(value(this.getInterceptTValue()));
        cells.add(value(this.getInterceptPValue()));
        c++;
        dc.addRowToTable(new DefaultRow("Row" + c, cells));
    }
    dc.close();
    return dc.getTable();
}

Example 30 with Pair

use of org.knime.core.util.Pair in project knime-core by knime.

the class PolyRegContent method getValues.

/**
 * Returns the parameters mapped to the values of the given matrix.
 *
 * @param matrix the matrix with the raw data
 * @return the variables mapped to values of the given matrix
 */
@Override
protected Map<Pair<String, Integer>, Double> getValues(final RealMatrix matrix) {
    Map<Pair<String, Integer>, Double> coefficients = new HashMap<Pair<String, Integer>, Double>();
    int p = m_includeConstant ? 1 : 0;
    for (int degree = 1; degree <= m_maxExponent; ++degree) {
        for (String colName : m_outSpec.getLearningFields()) {
            if (m_factorList.contains(colName)) {
                Iterator<DataCell> designIter = m_factorDomainValues.get(colName).iterator();
                // Omit first
                designIter.next();
                while (designIter.hasNext()) {
                    DataCell dvValue = designIter.next();
                    String variable = colName + "=" + dvValue;
                    double coeff = matrix.getEntry(0, p);
                    coefficients.put(Pair.create(variable, degree), coeff);
                    p++;
                }
            } else {
                String variable = colName;
                double coeff = matrix.getEntry(0, p);
                coefficients.put(Pair.create(variable, degree), coeff);
                p++;
            }
        }
    }
    return coefficients;
}