Description
Compare two supplied directed ecological effects.
Ecological records need explicit sampling units, detection states, effort denominators, interval geometry and trait/abundance bases. Nondetection differs from absence, and shared sampling-unit labels do not alone diagnose pseudoreplication. A one-axis overlap or single weighted contribution is only a limited component of a broader ecological analysis.
Compare two supplied directed ecological effects.
When to use this tool
Use Ecological Asymmetry Interaction Pair when you already have firstEffectOnSecond, secondEffectOnFirst and need to compare two supplied directed ecological effects.
How to use the tool and how it works
- Enter firstEffectOnSecond, secondEffectOnFirst. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedAsymmetry, absoluteAsymmetry. Use the output convention below.
Return firstEffectOnSecond-secondEffectOnFirst and its absolute magnitude.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstEffectOnSecond | First Effect On Second | Required. Finite number. |
| secondEffectOnFirst | Second Effect On First | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedAsymmetry | Signed Asymmetry | Required. Finite number. |
| absoluteAsymmetry | Absolute Asymmetry | Required. Finite number. |
{
"input": {
"firstEffectOnSecond": 0.8,
"secondEffectOnFirst": 0.3
},
"output": {
"signedAsymmetry": 0.5,
"absoluteAsymmetry": 0.5
}
}Limitations and assumptions
- Effect units and definitions must be comparable. No interaction is estimated, direction inferred or dimensionless asymmetry measure constructed.
- 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
Review original survey records, sampling design, specimens and calibration definitions for an ecological conclusion. Use complete detection, population, community or process models as appropriate; local count rates and source labels do not infer unobserved states or ecological mechanisms.
References
Similar or alternative tools
- Field Observation Visibility Weight
Calculate one observation's supplied visibility-weighted contribution.
- Ecological Trait Abundance Contribution
Calculate one taxon's abundance-weighted trait contribution.