Houseplant Watering Interval Lookup
Read actual drying pot-mass trajectory for independently justified caller rewater threshold, no extrapolation beyond observations; not universal houseplant interval or diagnosing roots/moisture needs.
Description
A drying pot-mass trajectory can identify a crossing of an independently justified rewatering threshold.
A drying pot-mass trajectory can identify a crossing of an independently justified rewatering threshold. Observation coverage limits that estimate.1
Enter at least two aligned nonnegative strictly increasing days/positive strictly decreasing masses and positive threshold. Above-first thresholds fail as already crossed; below-last thresholds return false and −1. Return crossing and last mass.
When to use Houseplant Watering Interval Lookup
Use Houseplant Watering Interval Lookup when you need to evaluate the supplied records under the calculation and evidence rules below. No extrapolation, universal interval or root/moisture diagnosis is provided.
Prepare the measured crop, container, lighting or inventory records requested. Supply verified local catalogs, calibration factors and crop-stage limits; keep units and dates consistent.
How to use Houseplant Watering Interval Lookup and understand its results
- Prepare the measured crop, container, lighting or inventory records requested. Supply verified local catalogs, calibration factors and crop-stage limits; keep units and dates consistent.
- Enter observedDaysAfterWatering, observedPotMassesGrams, callerIndependentlyEstablishedRewaterMassGrams using the field table and calculation rules, then run the tool.
- Read observedRewaterMassCrossingAvailable, interpolatedDaysToCallerMassThreshold, lastObservedPotMassGrams. 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 |
|---|---|---|---|
| observedDaysAfterWatering | Observed days after watering | list of number | Required |
| observedPotMassesGrams | Observed pot masses grams | list of number | Required |
| callerIndependentlyEstablishedRewaterMassGrams | Caller independently established rewater mass grams | number | Required |
Enter at least two aligned nonnegative strictly increasing days/positive strictly decreasing masses and positive threshold. Above-first thresholds fail as already crossed; below-last thresholds return false and −1. Return crossing and last mass.
crossing=piecewise linear inverse interpolation on decreasing mass Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedRewaterMassCrossingAvailable | Observed rewater mass crossing available | boolean |
| interpolatedDaysToCallerMassThreshold | Interpolated days to caller mass threshold | number |
| lastObservedPotMassGrams | Last observed pot mass grams | number |
{
"input": {
"observedDaysAfterWatering": [
0,
2,
4
],
"observedPotMassesGrams": [
1000,
900,
700
],
"callerIndependentlyEstablishedRewaterMassGrams": 800
},
"output": {
"observedRewaterMassCrossingAvailable": true,
"interpolatedDaysToCallerMassThreshold": 3,
"lastObservedPotMassGrams": 700
}
}Limitations and assumptions
No extrapolation, universal interval or root/moisture diagnosis is provided.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Days To Germination Vegetable Lookup: A cumulative germination curve can estimate when a selected fraction is reached. Late first observations and incomplete follow-up create different censoring cases. For a complementary task, use Hanging Height PPFD Decay Calculator: Matched lamp-height measurements can calibrate local PPFD. Extended light sources need not follow a simple inverse-square model.
References
-
Houseplant Watering Interval Lookup — tool.io
Similar or alternative tools
- Days To Germination Vegetable Lookup
A cumulative germination curve can estimate when a selected fraction is reached. Late first observations and incomplete follow-up create different censoring cases.
- Hanging Height PPFD Decay Calculator
Matched lamp-height measurements can calibrate local PPFD. Extended light sources need not follow a simple inverse-square model.