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

Example 36 with DataCell

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

the class TwoSampleTTestStatistics 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 37 with DataCell

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

the class TwoSampleTTestStatistics method getGroupTable.

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

Example 38 with DataCell

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

the class CreateDateTimeNodeModel method createByVariableRowNr.

/**
 * Create date&time row with a variable number of rows depending on a given starting point, a duration/period and an
 * ending point.
 */
private void createByVariableRowNr(final BufferedDataContainer container, final Temporal startDateTime, final Temporal endDateTime, final TemporalAmount durationOrPeriod) throws InvalidSettingsException {
    Temporal start = startDateTime;
    Temporal end = endDateTime;
    // check if duration is zero
    if ((durationOrPeriod instanceof Period) && ((Period) durationOrPeriod).isZero()) {
        setWarningMessage("Interval is zero! Node created an empty table.");
        return;
    } else if ((durationOrPeriod instanceof Duration) && ((Duration) durationOrPeriod).isZero()) {
        setWarningMessage("Interval is zero! Node created an empty table.");
        return;
    }
    // === check if start date is after end ===
    boolean wasLocalTime = start instanceof LocalTime;
    final boolean isStartAfterEnd;
    if (start instanceof LocalDate) {
        isStartAfterEnd = ((LocalDate) start).isAfter((LocalDate) end);
    } else if (start instanceof LocalTime) {
        // because of the problem that 00:00 is before 23:59, a local time needs to be temporarily converted
        // to a local date time
        boolean isLocalTimeStartAfterEnd = ((LocalTime) start).isAfter((LocalTime) end);
        final boolean isDurationNegative = ((Duration) durationOrPeriod).isNegative();
        int daysAddedToEnd = 0;
        if (isLocalTimeStartAfterEnd && !isDurationNegative) {
            daysAddedToEnd = 1;
        }
        if (!isLocalTimeStartAfterEnd && isDurationNegative) {
            daysAddedToEnd = -1;
        }
        if (start.equals(end)) {
            daysAddedToEnd = 0;
        }
        final int dayOfYear = 10;
        start = LocalDateTime.of(LocalDate.ofYearDay(2010, dayOfYear), (LocalTime) start);
        end = LocalDateTime.of(LocalDate.ofYearDay(2010, dayOfYear + daysAddedToEnd), (LocalTime) end);
        isStartAfterEnd = ((LocalDateTime) start).isAfter((LocalDateTime) end);
    } else if (start instanceof LocalDateTime) {
        isStartAfterEnd = ((LocalDateTime) start).isAfter((LocalDateTime) end);
    } else {
        isStartAfterEnd = ((ZonedDateTime) start).isAfter((ZonedDateTime) end);
    }
    // === check if input is legal: duration/period needs to be positive if end is after start and vice versa ===
    final String warningMsgPos = "Interval must be positive, if end is after start date! Node created an empty table.";
    final String warningMsgNeg = "Interval must be negative, if end is before start date! Node created an empty table.";
    if (start instanceof LocalDate) {
        if ((((LocalDate) end).isAfter((LocalDate) start)) && (((LocalDate) start.plus(durationOrPeriod)).isBefore((LocalDate) start))) {
            setWarningMessage(warningMsgPos);
            return;
        }
        if ((((LocalDate) end).isBefore((LocalDate) start)) && (((LocalDate) start.plus(durationOrPeriod)).isAfter((LocalDate) start))) {
            setWarningMessage(warningMsgNeg);
            return;
        }
    } else if (start instanceof LocalDateTime) {
        if ((((LocalDateTime) end).isAfter((LocalDateTime) start)) && (((LocalDateTime) start.plus(durationOrPeriod)).isBefore((LocalDateTime) start))) {
            setWarningMessage(warningMsgPos);
            return;
        }
        if ((((LocalDateTime) end).isBefore((LocalDateTime) start)) && (((LocalDateTime) start.plus(durationOrPeriod)).isAfter((LocalDateTime) start))) {
            setWarningMessage(warningMsgNeg);
            return;
        }
    } else if (start instanceof ZonedDateTime) {
        if ((((ZonedDateTime) end).isAfter((ZonedDateTime) start)) && (((ZonedDateTime) start.plus(durationOrPeriod)).isBefore((ZonedDateTime) start))) {
            setWarningMessage(warningMsgPos);
            return;
        }
        if ((((ZonedDateTime) end).isBefore((ZonedDateTime) start)) && (((ZonedDateTime) start.plus(durationOrPeriod)).isAfter((ZonedDateTime) start))) {
            setWarningMessage(warningMsgNeg);
            return;
        }
    }
    // === create rows ===
    Temporal currentDateTime = start;
    long row_idx = 0;
    while (true) {
        final DataCell dataCell;
        final boolean isEqual = currentDateTime.equals(end);
        final boolean isCurrentAfterEnd;
        if (currentDateTime instanceof LocalDate) {
            isCurrentAfterEnd = ((LocalDate) currentDateTime).isAfter((LocalDate) end);
            dataCell = LocalDateCellFactory.create((LocalDate) currentDateTime);
        } else if (currentDateTime instanceof LocalDateTime) {
            isCurrentAfterEnd = ((LocalDateTime) currentDateTime).isAfter((LocalDateTime) end);
            if (wasLocalTime) {
                dataCell = LocalTimeCellFactory.create((((LocalDateTime) currentDateTime).truncatedTo(ChronoUnit.MILLIS)).toLocalTime());
            } else {
                dataCell = LocalDateTimeCellFactory.create(((LocalDateTime) currentDateTime).truncatedTo(ChronoUnit.MILLIS));
            }
        } else {
            isCurrentAfterEnd = ((ZonedDateTime) currentDateTime).isAfter((ZonedDateTime) end);
            dataCell = ZonedDateTimeCellFactory.create(((ZonedDateTime) currentDateTime).truncatedTo(ChronoUnit.MILLIS));
        }
        if ((isCurrentAfterEnd && !isStartAfterEnd) || (!isCurrentAfterEnd && !isEqual && isStartAfterEnd)) {
            break;
        }
        container.addRowToTable(new DefaultRow(new RowKey("Row" + row_idx++), dataCell));
        if (isEqual) {
            break;
        }
        currentDateTime = currentDateTime.plus(durationOrPeriod);
    }
}

Example 39 with DataCell

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

the class OneWayANOVANodeModel method getDescriptiveStatisticsTable.

/**
 * Get table with descriptive statistics
 * @param result test statistic
 * @param exec the exection context
 * @return a combined table of the test statistic
 */
private BufferedDataTable getDescriptiveStatisticsTable(final OneWayANOVAStatistics[] result, final ExecutionContext exec) {
    BufferedDataContainer cont = exec.createDataContainer(OneWayANOVAStatistics.getGroupStatisticsSpec());
    int r = 0;
    for (int i = 0; i < result.length; i++) {
        for (List<DataCell> cells : result[i].getGroupStatisticsCells()) {
            cont.addRowToTable(new DefaultRow(RowKey.createRowKey(r), cells));
            r++;
        }
    }
    cont.close();
    return cont.getTable();
}

Example 40 with DataCell

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

the class OneWayANOVANodeModel method getTestStatisticsTable.

/**
 * Get table with test statistics
 * @param result test statistic
 * @param exec the execution context
 * @return a combined table of the test statistic
 */
private BufferedDataTable getTestStatisticsTable(final OneWayANOVAStatistics[] result, final ExecutionContext exec) {
    BufferedDataContainer cont = exec.createDataContainer(OneWayANOVAStatistics.getTableSpec());
    int r = 0;
    for (int i = 0; i < result.length; i++) {
        for (List<DataCell> cells : result[i].getTTestCells()) {
            cont.addRowToTable(new DefaultRow(RowKey.createRowKey(r), cells));
            r++;
        }
    }
    cont.close();
    return cont.getTable();
}