Description
Divide joint by primary for conditionalShare and by all baskets for jointShare.
Marketing rates compare a counted outcome with a declared cohort or exposure base. Reentries, exclusions, and distinct funnel stages can change the denominator substantially.
Divide joint by primary for conditionalShare and by all baskets for jointShare.
When to use this tool
Use Basket Cross Sell One Item Share when you need a transparent cohort or exposure ratio.
How to use the tool and how it works
- Enter baskets, primaryBaskets, jointBaskets. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read conditionalShare, jointShare. Use the output convention below.
Require jointBaskets ≤ primaryBaskets ≤ baskets with positive primary and total counts. Divide joint by primary for conditionalShare and by all baskets for jointShare.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| baskets | Baskets | Required. Safe integer; minimum 1. |
| primaryBaskets | Primary Baskets | Required. Safe integer; minimum 1. |
| jointBaskets | Joint Baskets | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| conditionalShare | Conditional Share | Required. Finite number. |
| jointShare | Joint Share | Required. Finite number. |
{
"input": {
"baskets": 1000,
"primaryBaskets": 200,
"jointBaskets": 50
},
"output": {
"conditionalShare": 0.25,
"jointShare": 0.05
}
}Limitations and assumptions
- These are distinct denominator conventions, not causal cross-selling lift, confidence intervals, or customer-level deduplication.
- 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
Reconcile event definitions, attribution windows, and deduplication against the source analytics before comparing rates.
References
Similar or alternative tools
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