Examples
Examples
Try the starting example
- Soil-test [sample day,observed value]
- [[0,5.5],[30,5.8],[60,6]]
- User target lower bound
- 6
- User target upper bound
- 7
- Measurement unit label
- pH
- Observed-value target-band differences
- [[0,5.5,0.5,0],[30,5.8,0.2,0],[60,6,0,0]]
- OLS observed trend per day
- 0.008333
Try another scenario
- Soil-test [sample day,observed value]
- [[0,5.5],[30,5.8],[60,6]]
- User target lower bound
- 6.2
- User target upper bound
- 7
- Measurement unit label
- pH
- Observed-value target-band differences
- [[0,5.5,0.7,0],[30,5.8,0.4,0],[60,6,0.2,0]]
- OLS observed trend per day
- 0.008333
Calculation method
Calculation method
Observed-value target-band differences
[day,value,distance below band,distance above band]; same analyte and method throughout.
OLS observed trend per day
Linear slope on supplied dates; not extrapolated agronomic advice.
Symbols and units
- a
- Soil-test [sample day,observed value]
- b
- User target lower bound
- c
- User target upper bound
- d
- Measurement unit label
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Lab values, sample dates, units, supplied target bands. Returns Trends and user-band differences. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. User target lower bound: minimum None, maximum 1000000000000.0. User target upper bound: minimum None, maximum 1000000000000.0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.