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Ryan Voots 2025-05-10 09:43:15 -04:00
parent 05de094429
commit 13f6c94fd0
1 changed files with 17 additions and 3 deletions
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20
sql/condition-glucose-grafana.sql
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@ -26,8 +26,22 @@ FROM generate_series($__timeFrom(), $__timeTo(), '1 minute'::interval) AS ts
LIMIT 1
) AS gi_next ON true
WHERE gi_prev.time IS NOT NULL and gi_next.time IS NOT NULL AND gi_next.time <> gi_prev.time
)
), collected AS (
SELECT ts as time,
public.ema(samp_value ::real, 0.33) over (order by ts asc) as smoothval,
ema(samp_value ::real, 0.33) over (order by ts asc) as smoothval,
samp_value as absvalue
FROM coallated;
FROM coallated), firstorder AS (
SELECT time, smoothval, absvalue,
smoothval - LAG (smoothval, 1) OVER (ORDER BY time ASC) as delta1st
FROM collected), secondorder AS (
SELECT
time,
smoothval,
absvalue,
delta1st,
delta1st - LAG(delta1st, 1) OVER (ORDER BY time ASC) as delta2nd
FROM firstorder)
SELECT *,
ema(delta1st, 0.25) OVER (ORDER BY time ASC) as smoothdelta1st,
ema(delta2nd, 0.25) OVER (ORDER BY time ASC) as smoothdelta2nd
FROM secondorder;