Difference between revisions of "Certain"

Revision as of 04:03, 20 January 2016

Certain(U)

Returns the value of «U».

Certain is considered to be a distribution function -- the distribution in which one outcome is certain. Therefore, its return value is different depending on whether it is evaluated in Mid-mode or Sample-mode. In Mid-mode, «U» is returned unchanged. In Sample-mode, the Run-index is added to «U» if not already there, so that the result is a sample (where every sample point is the same value).

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 [[Category:Doc Status C]] <!-- For Lumina use, do not change -->
-Returns the value of U.
+== Certain(U)==
+Returns the value of «U».
-= Declaration =
+[[Certain]] is considered to be a [[:Category:Distribution Functions|distribution function]] -- the distribution in which one outcome is certain.  Therefore, its return value is different depending on whether it is evaluated in [[Evaluation Modes|Mid-mode]] or [[Evaluation Modes|Sample-mode]].  In [[Mid]]-mode, «U» is returned unchanged.  In [[Sample]]-mode, the [[Run]]-index is added to «U» if not already there, so that the result is a sample (where every sample point is the same value).
- Certain( U )
+==See Also==
+* [[Evaluation Modes]]
-= Description =
+* [[Statistical functions]]
+* [[Statistical Functions and Importance Weighting]]
-Certain is considered to be a [[:Category:Distribution Functions|distribution function]] -- the distribution in which one outcome is certain.  Therefore, its return value is different depending on whether it is evaluated in [[Evaluation Modes|Mid-mode]] or [[Evaluation Modes|Sample-mode]].  In Mid-mode, U is returned unchanged.  In Sample-mode, the [[Run]]-index is added to U if not already there, so that the result is a sample (where every sample point is the same value).
-(new to 4.0): The introduction of Run in sample-mode is new to 4.0.