Description
Return target observation-window width and eligible duration.
Model validation depends on when information became available and how records or entities enter splits. A timestamp inequality or group overlap count can identify one local issue without proving absence of every form of leakage.
Return target observation-window width and eligible duration.
When to use this tool
Use Target Observation Window Width when checking an explicit feature-time or split-membership condition.
How to use the tool and how it works
- Enter start, end, excludedDuration. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read width, eligibleWidth. Use the output convention below.
Return target observation-window width and eligible duration. Require end >= start and excludedDuration within elapsed width; eligibleWidth = end-start-excludedDuration.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| start | Start | Required. Finite number. |
| end | End | Required. Finite number. |
| excludedDuration | Excluded Duration | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| width | Extent on the stated coordinate or temporal basis. | Required. Finite number. |
| eligibleWidth | Eligible Width | Required. Finite number. |
{
"input": {
"start": 10,
"end": 30,
"excludedDuration": 5
},
"output": {
"width": 20,
"eligibleWidth": 15
}
}Limitations and assumptions
- Excluded time is supplied, not discovered; this does not validate label construction or censoring assumptions.
- 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 a complete data-provenance and validation-design review, including label horizons, entity dependence and preprocessing fit scope.
References
Similar or alternative tools
- Target Leakage Explicit Time Order
Check feature availability and target ordering at prediction time.
- Feature Window Availability Slack
Return feature publication time and safety-lag slack.