The DeltaBounds Aggregate defined in Table 41 returns the difference between the StartBound and the EndBound Aggregates with the exception that both the start and end shall be Good. If the end value is less than the start value, the result will be negative. If the end value is the same as the start value the result will be zero. If the end value is greater than the start value, the result will be positive. If one or both values are Bad the return status will be Bad_NoData. If one or both values are Uncertain the status will be Uncertain_DataSubNormal.
Table 41 – DeltaBounds Aggregate summary
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DeltaBounds Aggregate Characteristics |
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Type |
Calculated |
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Data Type |
Same as Source |
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Use Bounds |
Simple |
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Timestamp |
StartTime |
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StatusCode Calculations |
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Calculation Method |
Custom Good if both bounds are Good Uncertain_DataSubNormal if either bound is uncertain Bad_NoData if either bound is Bad |
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Partial |
Set Sometimes If an interval is not a complete interval |
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Calculated |
Set Always |
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Interpolated |
Not Set |
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Raw |
Not Set |
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Multi Value |
Not Set |
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StatusCode Common Special Cases |
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Before Start of Data |
Bad_NoData |
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After End of Data |
Bad_NoData |
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No Start Bound |
Bad_NoData |
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No End Bound |
Bad_NoData |
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Bound Bad |
Bad_NoData |
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Bound Uncertain |
Uncertain_DataSubNormal |
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