Description
Return their sum and sum/transectLength.
Ecological observation summaries depend on sampling effort, eligible time, classified counts and missingness policies. Flower-minutes, area-days and observed proportions have different denominators. Observation support is distinct from true abundance, detection probability or a causal biological-control effect.
Return their sum and sum/transectLength.
When to use this tool
Use Residue Cover Line Intercept One Hit when checking the stated observation support, exposure, sample or seasonal-gap convention.
How to use the tool and how it works
- Enter hitLengths, transectLength. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read coveredLength, coverFraction. Use the output convention below.
Require positive transect length and nonnegative hit lengths whose sum does not exceed it. Return their sum and sum/transectLength.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| hitLengths | Hit Lengths | Required. Array of finite number; maximum items 256. |
| transectLength | Transect Length | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| coveredLength | Covered Length | Required. Finite number. |
| coverFraction | Cover Fraction | Required. Finite number. |
{
"input": {
"hitLengths": [
1,
2,
1
],
"transectLength": 10
},
"output": {
"coveredLength": 4,
"coverFraction": 0.4
}
}Limitations and assumptions
- Hit intervals are not geometrically unioned; overlapping observations must be reconciled before supplying lengths.
- 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 verified representative field records and suitable sampling/detection analysis for ecological inference, uncertainty and management.
References
Similar or alternative tools
- Rotation Legume Duration Share
Sum legume durations and divide by all durations; if total is zero return share=0 and defined=false.
- Pollinator Valid Window Share
Eligible duration requires flowering and valid weather; observed eligible duration requires all three.