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IDProjectCategoryView StatusLast Update
000330110000-013: AggregatesSpecpublic2016-11-22 16:30
ReporterMark Rice Assigned ToRod Stein  
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionfixed 
Summary0003301: StandardDeviation and Variance aggregate examples for Historian1 using an uncertain value when it should not
Description

The 1.03 spec for the StandardDeviation and Variance aggregates says that only good values should be used.

5.4.3.37 says,

"where X is each Good raw value in the interval, Avg(X) is the average of the Good raw values, and n is the number of Good raw values in the interval."

and later

"If any non-Good values were ignored, the Aggregate quality is uncertain/subnormal."

But the tables in A.35.2, A.36.2, A.37.2, and A.38.2 all have incorrect values for the interval starting at 12:01:00 for Historian1.

The results for each of these intervals should be zero because there is only one Good value in the interval.

TagsNo tags attached.
Commit Version

Relationships

duplicate of 0003313 closedRod Stein 10000-013: Aggregates Standard deviation example in table A.35.2 Historian1 uses uncertain value when it should not 
related to 0003614 assignedArchie Miller NodeSets, XSDs and Generated Code StandardDeviation and Variance aggregate examples for Historian1 using an uncertain value when it should not 

Activities

Rod Stein

2016-11-09 21:01

developer   ~0007306

Fixed in Part 13 Draft 0

Calculation was incorrectly using non-good data. Calculation was corrected.

Added to errata 1.03.4

Jim Luth

2016-11-22 16:30

administrator   ~0007364

Agreed to changes in Telecon.

Issue History

Date Modified Username Field Change
2016-02-09 18:40 Mark Rice New Issue
2016-03-01 17:11 Jim Luth Target Version => 1.04
2016-03-01 17:12 Jim Luth Status new => assigned
2016-03-01 17:12 Jim Luth Assigned To => Rod Stein
2016-11-09 20:14 Rod Stein Relationship added has duplicate 0003313
2016-11-09 21:01 Rod Stein Note Added: 0007306
2016-11-09 21:01 Rod Stein Relationship replaced duplicate of 0003313
2016-11-09 21:01 Rod Stein Status assigned => resolved
2016-11-09 21:01 Rod Stein Fixed in Version => 1.04
2016-11-09 21:01 Rod Stein Resolution open => fixed
2016-11-22 16:29 Jim Luth Issue cloned: 0003614
2016-11-22 16:29 Jim Luth Relationship added related to 0003614
2016-11-22 16:30 Jim Luth Note Added: 0007364
2016-11-22 16:30 Jim Luth Status resolved => closed