Bug 1123 – Class MinMaxAvgTotalCalculator does not implement all the methods in its interface

Bug 1123 - Class MinMaxAvgTotalCalculator does not implement all the methods in its interface


Summary:	Class MinMaxAvgTotalCalculator does not implement all the methods in its inte...

Status:	RESOLVED FIXED

Product:	ns-3
Classification:	Unclassified
Component:	general
Version:	ns-3-dev
Hardware:	All All

Importance:	P5 minor
Assigned To:	Mitch Watrous

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2011-05-03 09:43 UTC by Jaume Nin
Modified:	2011-06-08 14:55 UTC (History)
CC List:	1 user (show)

See Also:

Attachments
Patch with the implementation of the unsupported methods (1.51 KB, patch) 2011-05-03 09:45 UTC, Jaume Nin	Details \| Diff
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Description Jaume Nin 2011-05-03 09:43:05 UTC

Class MinMaxAvgTotalCalculator only implements the min max and the average calculations, the other ones (standard deviation, sum, squared sum and variance) are not supported.

Comment 1 Jaume Nin 2011-05-03 09:45:05 UTC

Created attachment 1104 [details]
Patch with the implementation of the unsupported methods

Comment 2 Mitch Watrous 2011-06-08 14:53:52 UTC

Negative variance values caused by roundoff can occur if you use standard formulas for the variance found in statistics text books.

Therefore, I calculated the variance based on equations (15) and (16) on page 216 of "The Art of Computer Programming, Volume 2", Second Edition. Donald E. Knuth. Addison-Wesley Publishing Company, 1973.

Comment 3 Mitch Watrous 2011-06-08 14:55:20 UTC

Bug closed.

ns-3-dev changeset:  4f64f4298183