org.knime.base.node.viz.crosstable
Class CrosstabStatisticsCalculator

java.lang.Object
  org.knime.base.node.viz.crosstable.CrosstabStatisticsCalculator

 class CrosstabStatisticsCalculator
extends Object

Compute statistics for the crosstab node.

Author:

Heiko Hofer

Nested Class Summary

(package private) static class

CrosstabStatisticsCalculator.CrosstabStatistics Container for the test statistics.

Constructor Summary

CrosstabStatisticsCalculator(BufferedDataTable freqTable, int rowIndex, int colIndex, int freqIndex, CrosstabNodeModel.CrosstabTotals totals, CrosstabProperties props)

Method Summary

(package private) CrosstabStatisticsCalculator.CrosstabStatistics	getStatistics() Get the statistics for the node.
(package private) BufferedDataTable	getTable() The table with statistics which is appended to the output of the crosstab node (contains e.g.
(package private) void	run(ExecutionContext exec) This method is not Thread-Safe.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CrosstabStatisticsCalculator

public CrosstabStatisticsCalculator(BufferedDataTable freqTable,
                                    int rowIndex,
                                    int colIndex,
                                    int freqIndex,
                                    CrosstabNodeModel.CrosstabTotals totals,
                                    CrosstabProperties props)

Parameters:

freqTable - table with at least three columns for the explanatory and response variable and for the frequency.

rowIndex - the column index of the explanatory variable

colIndex - the column index of the response variable

freqIndex - the column index of the frequency

totals - the wrapper for the totals (row count total, column count totals and total count)

props - the crosstab properties which is a source for the column names of the table return by getTable()

Method Detail

run

void run(ExecutionContext exec)

This method is not Thread-Safe. Call this method before calling any of the getter methods.

Parameters:

exec - the execution context.

getTable

BufferedDataTable getTable()

The table with statistics which is appended to the output of the crosstab node (contains e.g. the cell chi-square). Make sure the run() is finished before calling this method.

Returns:

row-wise statistics to be appended to the output of the crosstab node

getStatistics

CrosstabStatisticsCalculator.CrosstabStatistics getStatistics()

Get the statistics for the node. Make sure the run() is finished before calling this method.

Returns:

the statistics