Examples with IntCell org.knime.core.data.def.IntCell used on opensource projects

Example 81 with IntCell

use of org.knime.core.data.def.IntCell in project knime-core by knime.

the class LeveneTestStatistics method getTTestCells.

/**
 * Get the test result of the Levene test.
 * @return the Levene test
 */
public List<List<DataCell>> getTTestCells() {
    if (m_groups.size() == 2) {
        // optimized version for two groups
        return getLeveneTestTwoGroupsCells();
    }
    double num = 0;
    double Zdd = m_lstats.getMean();
    int k = m_groups.size();
    for (int i = 0; i < k; i++) {
        SummaryStatistics statsGi = m_levenePre.getLgstats().get(i);
        double ni = statsGi.getN();
        double Zidot = statsGi.getMean();
        num += ni * (Zidot - Zdd) * (Zidot - Zdd);
    }
    double den = 0;
    for (int i = 0; i < k; i++) {
        SummaryStatistics stats2Gi = m_denStats.get(i);
        den += stats2Gi.getSumsq();
    }
    double L = (m_lstats.getN() - k) / (double) (k - 1) * num / den;
    long df1 = k - 1;
    long df2 = m_lstats.getN() - k;
    FDistribution distribution = new FDistribution(df1, df2);
    double pValue = 1 - distribution.cumulativeProbability(L);
    List<DataCell> cells = new ArrayList<DataCell>();
    cells.add(new StringCell(m_column));
    cells.add(new DoubleCell(L));
    cells.add(new IntCell((int) df1));
    cells.add(new IntCell((int) df2));
    cells.add(new DoubleCell(pValue));
    return Collections.singletonList(cells);
}

Example 82 with IntCell

use of org.knime.core.data.def.IntCell in project knime-core by knime.

the class OneWayANOVAStatistics method getWithinGroups.

/**
 * Get the row of the ANOVA table with the cells "Within Groups".
 */
private List<DataCell> getWithinGroups(final ANOVA anova) {
    List<DataCell> cells = new ArrayList<DataCell>();
    cells.add(new StringCell(m_column));
    cells.add(new StringCell(SOURCE_WITHIN_GROUPS));
    cells.add(new DoubleCell(anova.getSquri()));
    cells.add(new IntCell((int) anova.getDfi()));
    cells.add(new DoubleCell(anova.getMsquri()));
    cells.add(DataType.getMissingCell());
    cells.add(DataType.getMissingCell());
    return cells;
}

Example 83 with IntCell

use of org.knime.core.data.def.IntCell in project knime-core by knime.

the class OneWayANOVAStatistics method getBetweenGroups.

/**
 * Get the row of the ANOVA table with the cells "Between Groups".
 */
private List<DataCell> getBetweenGroups(final ANOVA anova) {
    List<DataCell> cells = new ArrayList<DataCell>();
    cells.add(new StringCell(m_column));
    cells.add(new StringCell(SOURCE_BETWEEN_GROUPS));
    cells.add(new DoubleCell(anova.getSqurb()));
    cells.add(new IntCell((int) anova.getDfb()));
    cells.add(new DoubleCell(anova.getMsqurb()));
    cells.add(new DoubleCell(anova.getF()));
    cells.add(new DoubleCell(anova.getpValue()));
    return cells;
}

Example 84 with IntCell

use of org.knime.core.data.def.IntCell in project knime-core by knime.

the class PairedTTestStatistics method getDescStats.

/**
 * Get descriptive statistics for the given column
 * @param column the name of the column
 * @param stats the statistics of the column
 * @param missing the missing values in this column
 * @return a DataRow with descriptive statistics
 */
private List<DataCell> getDescStats(final String column, final SummaryStatistics stats, final MutableInteger missing) {
    List<DataCell> cells = new ArrayList<DataCell>();
    cells.add(new StringCell(m_pair));
    cells.add(new StringCell(column));
    cells.add(new IntCell((int) stats.getN()));
    cells.add(new IntCell(missing.intValue()));
    cells.add(new DoubleCell(stats.getMean()));
    cells.add(new DoubleCell(stats.getStandardDeviation()));
    cells.add(new DoubleCell(StatsUtil.getStandardError(stats)));
    return cells;
}

Example 85 with IntCell

use of org.knime.core.data.def.IntCell in project knime-core by knime.

the class ARFFRowIterator method createNewDataCellOfType.

/*
     * The function creates a default <code> DataCell </code> of a type
     * depending on the <code> type </code> passed in, and initializes the value
     * of this data cell from the <code> data </code> string (converting the
     * string to the corresponding type). It will create a missing cell and
     * print a warning if it couldn't convert the string into the appropreate
     * format (to int or double). It throws a <code> IllegalStateException
     * </code> if the <code> type </code> passed in is not supported. @param
     * type Specifies the type of DataCell that is to be created, supported are
     * DoubleCell, IntCell, and StringCell. @param data the string
     * representation of the value that will be set in the DataCell created. It
     * gets trimmed before it's converted into a number. @param
     * createMissingCell If set true the default ' <code> missing </code> '
     * value of that cell type will be set indicating that the data in that cell
     * was not specified. The <code> data </code> parameter is ignored then.
     *
     * @return <code> DataCell </code> of the type specified in <code> type
     * </code> .
     */
private DataCell createNewDataCellOfType(final DataType type, final String data, final boolean createMissingCell) {
    if (type.equals(StringCell.TYPE)) {
        if (createMissingCell) {
            return DataType.getMissingCell();
        } else {
            return new StringCell(data);
        }
    } else if (type.equals(IntCell.TYPE)) {
        if (createMissingCell) {
            return DataType.getMissingCell();
        } else {
            try {
                int val = Integer.parseInt(data.trim());
                return new IntCell(val);
            } catch (NumberFormatException nfe) {
                if (m_numMsgWrongFormat < MAX_ERR_MSG) {
                    LOGGER.warn("ARFF reader WARNING: Wrong data " + "format. In line " + m_tokenizer.getLineNumber() + " read '" + data + "' for an integer.");
                    LOGGER.warn("    Creating missing cell for it.");
                    m_numMsgWrongFormat++;
                }
                if (m_numMsgWrongFormat == MAX_ERR_MSG) {
                    LOGGER.warn("    (last message of " + "this kind.)");
                    m_numMsgWrongFormat++;
                }
                return DataType.getMissingCell();
            }
        }
    } else if (type.equals(DoubleCell.TYPE)) {
        if (createMissingCell) {
            return DataType.getMissingCell();
        } else {
            try {
                double val = Double.parseDouble(data.trim());
                return new DoubleCell(val);
            } catch (NumberFormatException nfe) {
                if (m_numMsgWrongFormat < MAX_ERR_MSG) {
                    LOGGER.warn("ARFF reader WARNING: Wrong data " + "format. In line " + m_tokenizer.getLineNumber() + " read '" + data + "' for a floating point.");
                    LOGGER.warn("    Creating missing cell for it.");
                    m_numMsgWrongFormat++;
                }
                if (m_numMsgWrongFormat == MAX_ERR_MSG) {
                    m_numMsgWrongFormat++;
                    LOGGER.warn("    (last message of this kind.)");
                }
                return DataType.getMissingCell();
            }
        }
    } else {
        throw new IllegalStateException("Cannot create DataCell of type" + type.toString());
    }
}