Nonhibernating Acid Incubation Delay Days
Compare observed exposed/control hatch-fraction timings on original egg denominators; signed delay is descriptive, censored/plateau crossings error, and no acid recipe or causal inference is supplied.
Description
A hatch-fraction crossing compares timing on each cohort's original egg denominator.
A hatch-fraction crossing compares timing on each cohort's original egg denominator. Exposed-minus-control timing is descriptive and may be negative.
Compare observed exposed/control hatch-fraction timings on original egg denominators; signed delay is descriptive, censored/plateau crossings error, and no acid recipe or causal inference is supplied.
When to use Nonhibernating Acid Incubation Delay Days
Use this tool to compare observed exposed/control hatch-fraction timings on original egg denominators; signed delay is descriptive, censored/plateau crossings error, and no acid recipe or causal inference is supplied.
Prepare cocoon, larval, leaf or reeling measurements on a consistent batch and moisture basis. Use the declared mass, length and time units.
How to use Nonhibernating Acid Incubation Delay Days and understand its results
- Prepare cocoon, larval, leaf or reeling measurements on a consistent batch and moisture basis. Use the declared mass, length and time units.
- Enter controlTimesDays, controlCumulativeHatchedCounts, controlTotalEggCount, exposedTimesDays, exposedCumulativeHatchedCounts, exposedTotalEggCount, hatchCriterionFraction using the field table and calculation rules, then run the tool.
- Read controlCriterionDay, exposedCriterionDay, observedIncubationDelayDays. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| controlTimesDays | Control times days | list of number | Required |
| controlCumulativeHatchedCounts | Control cumulative hatched counts | list of number | Required |
| controlTotalEggCount | Control total egg count | integer | Required |
| exposedTimesDays | Exposed times days | list of number | Required |
| exposedCumulativeHatchedCounts | Exposed cumulative hatched counts | list of number | Required |
| exposedTotalEggCount | Exposed total egg count | integer | Required |
| hatchCriterionFraction | Hatch criterion fraction | number | Required |
Use positive integer original egg counts, a criterion fraction in (0,1], increasing time axes and nondecreasing cumulative counts within each total. Interpolate exactly one identifiable crossing for each cohort; missing or plateau crossings error.1
Paired lists must be nonempty and have equal lengths. Each sequence checked for increasing order must contain at least two strictly increasing values.
delay days = exposed criterion day − control criterion day Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| controlCriterionDay | Control criterion day | number |
| exposedCriterionDay | Exposed criterion day | number |
| observedIncubationDelayDays | Observed incubation delay days | number |
{
"input": {
"controlTimesDays": [
0,
2,
4
],
"controlCumulativeHatchedCounts": [
0,
50,
100
],
"controlTotalEggCount": 100,
"exposedTimesDays": [
0,
3,
6
],
"exposedCumulativeHatchedCounts": [
0,
50,
100
],
"exposedTotalEggCount": 100,
"hatchCriterionFraction": 0.5
},
"output": {
"controlCriterionDay": 2,
"exposedCriterionDay": 3,
"observedIncubationDelayDays": 1
}
}Limitations and assumptions
No acid-treatment recipe or causal effect is inferred from the timing contrast.
Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Instar Molt Wake Hours: Interpolate an observed cohort wake-fraction crossing after molt start; missing or nonunique crossings are censored/ambiguous rather than assigned reference molt hours. For a complementary task, use Oviposition First 24H Percent: Calculate observed first-24-hour oviposition share from nonoverlapping bins beginning at laying onset with an exact 24-hour boundary; later unobserved laying remains outside the denominator.
References
Similar or alternative tools
- Instar Molt Wake Hours
Interpolate an observed cohort wake-fraction crossing after molt start; missing or nonunique crossings are censored/ambiguous rather than assigned reference molt hours.
- Oviposition First 24H Percent
Calculate observed first-24-hour oviposition share from nonoverlapping bins beginning at laying onset with an exact 24-hour boundary; later unobserved laying remains outside the denominator.