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

Example 46 with DataTableSpec

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

the class OneSampleTTestNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected DataTableSpec[] configure(final DataTableSpec[] inSpecs) throws InvalidSettingsException {
    DataTableSpec spec = inSpecs[0];
    FilterResult filterResult = m_settings.getTestColumns().applyTo(spec);
    if (filterResult.getIncludes().length == 0) {
        if (filterResult.getExcludes().length > 0) {
            throw new InvalidSettingsException("Please select at least " + "one test column.");
        } else {
            throw new InvalidSettingsException("There are no numeric columns " + "in the input table. At least one numeric column " + "is needed to perform the test.");
        }
    }
    if (m_settings.getConfidenceIntervalProb() > 0.99 || m_settings.getConfidenceIntervalProb() < 0.01) {
        throw new InvalidSettingsException("The property " + "\"Confidence Interval (in %)\" must be in the range " + "[1, 99].");
    }
    return new DataTableSpec[] { OneSampleTTestStatistics.getTableSpec(), OneSampleTTestStatistics.getDescStatsSpec() };
}

Example 47 with DataTableSpec

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

the class OneSampleTTestNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected BufferedDataTable[] execute(final BufferedDataTable[] inData, final ExecutionContext exec) throws Exception {
    DataTableSpec spec = inData[0].getSpec();
    FilterResult filter = m_settings.getTestColumns().applyTo(spec);
    OneSampleTTest test = new OneSampleTTest(filter.getIncludes(), m_settings.getTestValue(), m_settings.getConfidenceIntervalProb());
    OneSampleTTestStatistics[] result = test.execute(inData[0], exec);
    m_descStats = getDescriptiveStatisticsTable(result, exec);
    m_stats = getTestStatisticsTable(result, exec);
    return new BufferedDataTable[] { m_stats, m_descStats };
}

Example 48 with DataTableSpec

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

the class OneWayANOVAStatistics method getTTestTable.

/**
 * Get the test result of the t-test, for the assumption of equal
 * variance and the assumption of unequal variances.
 * @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 49 with DataTableSpec

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

the class OneSampleTTestStatistics method getTTestTable.

/**
 * Get the test result of the t-test, for the assumption of equal
 * variance and the assumption of unequal variances.
 * @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 50 with DataTableSpec

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

the class OneSampleTTestStatistics method getDescStatsTable.

/**
 * Get descriptive statistics
 * @param exec
 * @return the descriptive statistics for each column test column
 */
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;
}