biz.sc.mm.dm.statistics

Interface StatisticsSet

public interface StatisticsSet

A StatisticsSet interface contains set of calculated statistics.

Method Summary

Methods

Modifier and Type	Method and Description
CorrelationMatrix	getCorrelationMatrix()
int	getObservationCount() Returns all observations count (eg number of database rows).
java.util.Collection	getWhereStatistics(java.lang.String where) Returns collection of all statistis (as AttributeStatistics objects) that are computed for specified where value.
AttributeStatistics	getWhereStatistics(java.lang.String attributeName, java.lang.String where) Returns statistics calculated for specified attribute and where value.
java.util.Collection	getWhereValues() Returns collection of all where values (as String objects) for which statistics are computed.
boolean	removeWhereStatistics(java.lang.String attributeName, java.lang.String where) Removes statistics for specified attribute and where value.

Method Detail

getObservationCount

int getObservationCount()

Returns all observations count (eg number of database rows).

Parameters:

-

Returns:

all observations count

getWhereValues

java.util.Collection getWhereValues()

Returns collection of all where values (as String objects) for which statistics are computed.

Returns:

All where values.

getWhereStatistics

java.util.Collection getWhereStatistics(java.lang.String where)

Returns collection of all statistis (as AttributeStatistics objects) that are computed for specified where value.

Parameters:

where - where value

Returns:

Collection of AttributeStatistics objects.

getWhereStatistics

AttributeStatistics getWhereStatistics(java.lang.String attributeName,
                                     java.lang.String where)

Returns statistics calculated for specified attribute and where value.

Parameters:

attributeName - attribute name

where - where value

Returns:

Calculated statistics.

removeWhereStatistics

boolean removeWhereStatistics(java.lang.String attributeName,
                            java.lang.String where)

Removes statistics for specified attribute and where value.

Parameters:

attributeName - attribute name

where - where value

Returns:

true if statements was removed

getCorrelationMatrix

CorrelationMatrix getCorrelationMatrix()