Description
Return referenceYield times that factor and signed change -referenceYield*coefficient*influence.
Agroforestry observations combine sampled areas, cohort counts, source uncertainty and caller-supplied response assumptions. A sample expansion or conditional yield term can be computed independently of sampling representativeness or a validated tree-crop interaction. Unknown source flags must retain their reporting meaning.
Return referenceYield times that factor and signed change -referenceYield*coefficient*influence.
When to use this tool
Use Tree Crop Competition Caller Response Term when checking the stated cohort, sample-expansion or assumed-response convention.
How to use the tool and how it works
- Enter referenceYield, treeInfluence, suppliedCoefficient. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read conditionalYield, change. Use the output convention below.
Require nonnegative reference yield and influence, and a nonnegative response factor 1-coefficient*influence. Return referenceYield times that factor and signed change -referenceYield*coefficient*influence.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| referenceYield | Reference Yield | Required. Finite number; minimum 0. |
| treeInfluence | Tree Influence | Required. Finite number; minimum 0. |
| suppliedCoefficient | Signed assumed yield-response coefficient per influence unit; not estimated or required nonnegative. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| conditionalYield | Conditional Yield | Required. Finite number. |
| change | Change | Required. Finite number. |
{
"input": {
"referenceYield": 100,
"treeInfluence": 0.2,
"suppliedCoefficient": 0.5
},
"output": {
"conditionalYield": 90,
"change": -10
}
}Limitations and assumptions
- The coefficient may be negative, giving a gain; no competitive response is fitted or biologically validated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use representative verified samples and an appropriate complete ecological/statistical model for abundance, yield response and uncertainty.
References
Similar or alternative tools
- Fertilizer Marginal Response One Step
Compute yield difference/input difference, multiply by output price, then subtract inputPrice for marginalNet.
- Crop Yield Price One Sensitivity Term
Return their product, area*yield as priceDerivative and area*price as yieldDerivative.