# Trend Test Operational?

**URL:** <https://discourse.oceanobservatories.org/t/trend-test-operational/454>\
**Category:** HelpDesk\
**Created:** [March 4, 2022, 6:05am UTC](https://discourse.oceanobservatories.org/t/trend-test-operational/454 "2022-03-04T06:05:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![iblack](https://avatars.discourse-cdn.com/v4/letter/i/3ec8ea/32.png) [@iblack](https://discourse.oceanobservatories.org/u/iblack)\
**Post date:** [March 4, 2022, 6:05am UTC](https://discourse.oceanobservatories.org/t/trend-test-operational/454/1 "2022-03-04T06:05:43Z")

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Is the trend qc test active? The [OOI quality control page](https://oceanobservatories.org/quality-control/) says it is not operational, but I am seeing qc\_executed flags of 29 for some data. Thanks.

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**Author:** ![mvardaro](https://avatars.discourse-cdn.com/v4/letter/m/8dc957/32.png) [@mvardaro](https://discourse.oceanobservatories.org/u/mvardaro)\
**Post date:** [March 5, 2022, 2:05am UTC](https://discourse.oceanobservatories.org/t/trend-test-operational/454/2 "2022-03-05T02:05:36Z")

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I wouldn’t say that it’s “working” but there are lookup table values in the QC Github repo for some data streams: [qc-lookup/data\_qc\_trend\_test\_values.csv at master · oceanobservatories/qc-lookup · GitHub](https://github.com/oceanobservatories/qc-lookup/blob/master/data_qc_trend_test_values.csv). Anything that has numbers under the _TrendTest\_TimeIntLengthDays_,_TrendTest\_PolynomialOrder_, and _TrendTest\_nstd_ columns will produce a value in the QC results in downloaded data. The results were never evaluated, and we never got a chance to fine-tune the test to provide a useful output.

-Mike Vardaro  
RCA Data Team