io.warp10.script.functions

Class NSUMSUMSQ

java.lang.Object

io.warp10.script.NamedWarpScriptFunction

io.warp10.script.functions.NSUMSUMSQ

All Implemented Interfaces:

WarpScriptStackFunction

public class NSUMSUMSQ
extends NamedWarpScriptFunction
implements WarpScriptStackFunction

Extract the number of values and the sum of values and sum of square of values. This is used to compute MU/SIGMA in a distributed way for a large number of similar GTS Computation uses BigDecimal to prevent overflowing for long series, this will lead to somewhat slower performance.

Constructor Summary

Constructors

Constructor and Description
NSUMSUMSQ(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	apply(WarpScriptStack stack)

Methods inherited from class io.warp10.script.NamedWarpScriptFunction

getName, refSnapshot, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NSUMSUMSQ

public NSUMSUMSQ(java.lang.String name)

Method Detail

apply

public java.lang.Object apply(WarpScriptStack stack)
                       throws WarpScriptException

Specified by:

apply in interface WarpScriptStackFunction

Throws:

WarpScriptException