Examples
Examples
Try the starting example
- Sowing day index
- 0
- Seeds sown
- 100
- Emergence [day index,new count]
- [[3,10],[4,40],[5,20]]
- Observed germination fraction
- 0.7
- Mean emergence time after sowing (days)
- 4.142857
- Cumulative emergence [day,count,fraction]
- [[3,10,0.1],[4,50,0.5],[5,70,0.7]]
Try another scenario
- Sowing day index
- 0
- Seeds sown
- 100
- Emergence [day index,new count]
- [[3,20],[4,40],[5,20]]
- Observed germination fraction
- 0.8
- Mean emergence time after sowing (days)
- 4
- Cumulative emergence [day,count,fraction]
- [[3,20,0.2],[4,60,0.6],[5,80,0.8]]
Calculation method
Calculation method
Observed germination fraction
Sum emerged counts/seeds sown.
Mean emergence time after sowing (days)
Count-weighted elapsed days among emerged seeds.
Cumulative emergence [day,count,fraction]
Ordered observations, no extrapolation to unobserved seeds.
Symbols and units
- a
- Sowing day index
- b
- Seeds sown
- c
- Emergence [day index,new count]
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
- Sow and emergence dates, batch counts. Returns Observed timing distribution and fraction. 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. Sowing day index: minimum -100000, maximum 100000. Seeds sown: minimum 1, maximum 1000000.
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.