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casacore::TableExprGroupStdDevArrayDouble Class Reference

Aggregate class determining the standard devation of array values in a group. More...

#include <ExprGroupAggrFuncArray.h>

Inheritance diagram for casacore::TableExprGroupStdDevArrayDouble:
casacore::TableExprGroupVarianceArrayDouble casacore::TableExprGroupFuncDouble casacore::TableExprGroupFuncBase

Public Member Functions

 TableExprGroupStdDevArrayDouble (TableExprNodeRep *node, uInt ddof)
 
virtual ~TableExprGroupStdDevArrayDouble ()
 
virtual void finish ()
 If needed, finish the aggregation. More...
 
- Public Member Functions inherited from casacore::TableExprGroupVarianceArrayDouble
 TableExprGroupVarianceArrayDouble (TableExprNodeRep *node, uInt ddof)
 
virtual ~TableExprGroupVarianceArrayDouble ()
 
virtual void apply (const TableExprId &id)
 Get the operand's value for the given row and apply it to the aggregation. More...
 
- Public Member Functions inherited from casacore::TableExprGroupFuncDouble
 TableExprGroupFuncDouble (TableExprNodeRep *node, Double initValue=0)
 
virtual ~TableExprGroupFuncDouble ()
 
virtual Double getDouble (const vector< TableExprId > &)
 
- Public Member Functions inherited from casacore::TableExprGroupFuncBase
 TableExprGroupFuncBase (TableExprNodeRep *node)
 Construct from the TaQL aggregation node. More...
 
virtual ~TableExprGroupFuncBase ()
 
virtual Bool isLazy () const
 Does the aggregate function use lazy semantics? The default implementation returns False. More...
 
uInt seqnr () const
 Get the function's sequence nr. More...
 
void setSeqnr (uInt seqnr)
 Set the function's sequence nr. More...
 
virtual CountedPtr< vector
< TableExprId > > 
getIds () const
 Get the assembled TableExprIds of a group. More...
 
virtual Bool getBool (const vector< TableExprId > &=vector< TableExprId >())
 Get the aggregated value. More...
 
virtual Int64 getInt (const vector< TableExprId > &=vector< TableExprId >())
 
virtual DComplex getDComplex (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MVTime getDate (const vector< TableExprId > &=vector< TableExprId >())
 
virtual String getString (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< BoolgetArrayBool (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< Int64getArrayInt (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< DoublegetArrayDouble (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< DComplex > getArrayDComplex (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< MVTimegetArrayDate (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< StringgetArrayString (const vector< TableExprId > &=vector< TableExprId >())
 

Additional Inherited Members

- Protected Attributes inherited from casacore::TableExprGroupVarianceArrayDouble
uInt itsDdof
 
Int64 itsNr
 
Double itsCurMean
 
- Protected Attributes inherited from casacore::TableExprGroupFuncDouble
Double itsValue
 
- Protected Attributes inherited from casacore::TableExprGroupFuncBase
TableExprNodeRepitsNode
 
TableExprNodeRepitsOperand
 
uInt itsSeqnr
 

Detailed Description

Aggregate class determining the standard devation of array values in a group.

Intended use:

Internal

Review Status

Test programs:
tExprGroup

Synopsis

Aggregate class determining the standard deviation of array values in a group. It uses a running algorithm (see en.wikipedia.org/wiki/Algorithms_for_calculating_variance)

Definition at line 340 of file ExprGroupAggrFuncArray.h.

Constructor & Destructor Documentation

casacore::TableExprGroupStdDevArrayDouble::TableExprGroupStdDevArrayDouble ( TableExprNodeRep node,
uInt  ddof 
)
virtual casacore::TableExprGroupStdDevArrayDouble::~TableExprGroupStdDevArrayDouble ( )
virtual

Member Function Documentation

virtual void casacore::TableExprGroupStdDevArrayDouble::finish ( )
virtual

If needed, finish the aggregation.

By default nothing is done.

Reimplemented from casacore::TableExprGroupVarianceArrayDouble.


The documentation for this class was generated from the following file: