Examples with DataCell org.knime.core.data.DataCell used on opensource projects

Example 31 with DataCell

use of org.knime.core.data.DataCell in project knime-core by knime.

the class PairedTTestStatistics method getTTestTable.

/**
 * Get the test result of the t-test.
 * @param exec the execution context
 * @return the t-test results
 */
public BufferedDataTable getTTestTable(final ExecutionContext exec) {
    DataTableSpec outSpec = getTableSpec();
    BufferedDataContainer cont = exec.createDataContainer(outSpec);
    int r = 0;
    for (List<DataCell> cells : getTTestCells()) {
        cont.addRowToTable(new DefaultRow(RowKey.createRowKey(r), cells));
        r++;
    }
    cont.close();
    BufferedDataTable outTable = cont.getTable();
    return outTable;
}

Example 32 with DataCell

use of org.knime.core.data.DataCell in project knime-core by knime.

the class PairedTTestStatistics method getDescStatsTable.

/**
 * Get descriptive statistics
 * @param exec the execution context
 * @return the descriptive statistics for each column of the pair
 */
public BufferedDataTable getDescStatsTable(final ExecutionContext exec) {
    DataTableSpec outSpec = getDescStatsSpec();
    BufferedDataContainer cont = exec.createDataContainer(outSpec);
    int r = 0;
    for (List<DataCell> cells : getDescStatsCells()) {
        cont.addRowToTable(new DefaultRow(RowKey.createRowKey(r), cells));
        r++;
    }
    cont.close();
    BufferedDataTable outTable = cont.getTable();
    return outTable;
}

Example 33 with DataCell

use of org.knime.core.data.DataCell in project knime-core by knime.

the class NewToOldTimeNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    return new StreamableOperator() {

        @Override
        public StreamableOperatorInternals saveInternals() {
            return null;
        }

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            final RowInput in = (RowInput) inputs[0];
            final RowOutput out = (RowOutput) outputs[0];
            final DataTableSpec inSpec = in.getDataTableSpec();
            String[] includeList = m_colSelect.applyTo(inSpec).getIncludes();
            final int[] includeIndeces = Arrays.stream(includeList).mapToInt(s -> inSpec.findColumnIndex(s)).toArray();
            DataRow row;
            while ((row = in.poll()) != null) {
                exec.checkCanceled();
                DataCell[] datacells = new DataCell[includeIndeces.length];
                for (int i = 0; i < includeIndeces.length; i++) {
                    if (m_isReplaceOrAppend.getStringValue().equals(OPTION_REPLACE)) {
                        final DataColumnSpecCreator dataColumnSpecCreator = new DataColumnSpecCreator(includeList[i], DateAndTimeCell.TYPE);
                        final ConvertTimeCellFactory cellFac = new ConvertTimeCellFactory(dataColumnSpecCreator.createSpec(), includeIndeces[i]);
                        datacells[i] = cellFac.getCells(row)[0];
                    } else {
                        final DataColumnSpec dataColSpec = new UniqueNameGenerator(inSpec).newColumn(includeList[i] + m_suffix.getStringValue(), DateAndTimeCell.TYPE);
                        final ConvertTimeCellFactory cellFac = new ConvertTimeCellFactory(dataColSpec, includeIndeces[i]);
                        datacells[i] = cellFac.getCells(row)[0];
                    }
                }
                if (m_isReplaceOrAppend.getStringValue().equals(OPTION_REPLACE)) {
                    out.push(new ReplacedColumnsDataRow(row, datacells, includeIndeces));
                } else {
                    out.push(new AppendedColumnRow(row, datacells));
                }
            }
            in.close();
            out.close();
        }
    };
}

Example 34 with DataCell

use of org.knime.core.data.DataCell in project knime-core by knime.

the class TwoSampleTTest method execute.

public TwoSampleTTestStatistics[] execute(final BufferedDataTable table, final ExecutionContext exec) throws InvalidSettingsException, CanceledExecutionException {
    DataTableSpec spec = table.getDataTableSpec();
    int groupingIndex = spec.findColumnIndex(m_grouping.getColumn());
    if (groupingIndex == -1) {
        throw new InvalidSettingsException("Grouping column not found.");
    }
    int[] testColumnsIndex = new int[m_testColumns.length];
    for (int i = 0; i < testColumnsIndex.length; i++) {
        testColumnsIndex[i] = spec.findColumnIndex(m_testColumns[i]);
    }
    int testColumnCount = m_testColumns.length;
    TwoSampleTTestStatistics[] result = new TwoSampleTTestStatistics[testColumnCount];
    for (int i = 0; i < testColumnCount; i++) {
        result[i] = new TwoSampleTTestStatistics(m_testColumns[i], m_grouping.getGroupLabels(), m_confidenceIntervalProb);
    }
    final int rowCount = table.getRowCount();
    int rowIndex = 0;
    for (DataRow row : table) {
        exec.checkCanceled();
        exec.setProgress(rowIndex++ / (double) rowCount, rowIndex + "/" + rowCount + " (\"" + row.getKey() + "\")");
        DataCell groupCell = row.getCell(groupingIndex);
        Group group = m_grouping.getGroup(groupCell);
        for (int i = 0; i < testColumnCount; i++) {
            if (group == null) {
                if (groupCell.isMissing()) {
                    result[i].addMissingGroup();
                } else {
                    result[i].addIgnoredGroup();
                }
                continue;
            }
            DataCell cell = row.getCell(testColumnsIndex[i]);
            if (!cell.isMissing()) {
                DoubleValue value = (DoubleValue) cell;
                result[i].addValue(value.getDoubleValue(), group);
            } else {
                result[i].addMissing(group);
            }
        }
    }
    return result;
}

Example 35 with DataCell

use of org.knime.core.data.DataCell in project knime-core by knime.

the class TwoSampleTTestStatistics method getGroupStatistics.

/**
 * Get descriptive statistics for the given Group.
 * @param group the group
 * @return the
 */
public List<DataCell> getGroupStatistics(final Group group) {
    List<DataCell> cells = new ArrayList<DataCell>();
    cells.add(new StringCell(m_column));
    cells.add(new StringCell(m_groups.get(group)));
    SummaryStatistics stats = m_gstats.get(group);
    cells.add(new IntCell((int) stats.getN()));
    cells.add(new IntCell(m_missing.get(group).intValue()));
    cells.add(new IntCell(m_missingGroup.intValue()));
    cells.add(new IntCell(m_ignoredGroup.intValue()));
    cells.add(new DoubleCell(stats.getMean()));
    cells.add(new DoubleCell(stats.getStandardDeviation()));
    cells.add(new DoubleCell(StatsUtil.getStandardError(stats)));
    return cells;
}