# Local Event Calendars — Two-Measure Correlation + Secondary-Measure Weighted Mean

> Local Event Calendars — Two-Measure Correlation + Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Computes two-measure correlation and secondary-measure weighted mean analytics on supplied local event calendar data (listed_events, updated_events) for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-news-19-181?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/local-event-calendars-two-measure-correlation-secondary-measure-e796097e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aan1eITVUN2zHvRU5ZOGw

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability local-event-calendars-two-measure-correlation-secondary-measure-e796097e -d '<json body>'
```

Example prompt: Can you run a two-measure correlation and weighted mean analysis on my local event calendar data — I have rows with listed_events and updated_events across channel groups like 'group-a' and 'group-b' from October 2026, and I want the secondary field set to listed_events?

## When to prefer this

Choose this endpoint when you need both a correlation between two event calendar metrics and a weighted mean of a selected measure computed together in a single paid call over up to 200 rows of supplied data. It is purpose-built for local event calendar datasets with listed_events and updated_events fields, unlike general-purpose statistics APIs. Best when you already have the data locally and need offline analytical summaries without any live lookup or external enrichment.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, date, listed_events, updated_events) — validation error
- Date values not matching YYYY-MM-DD pattern — schema validation failure
- Null values in both measure columns for all rows — insufficient data for correlation
- Invalid field enum value — rejected with schema error
- Payment not completed — x402 payment required response

## How this service works

Local event calendars — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied local event calendars records (listed_events, updated_events). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Returns two independent statistical reports sharing local analytical engines: (1) a two-measure correlation between listed_events and updated_events across supplied rows, and (2) a secondary-measure weighted mean for the selected field. Results are derived entirely from the supplied data with no external lookup or prediction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "channel_group",
     "date",
     "listed_events",
     "updated_events"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "channel_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "listed_events": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "updated_events": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "channel_group": "group-a",
     "listed_events": 10,
     "updated_events": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "channel_group": "group-b",
     "listed_events": 20,
     "updated_events": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "channel_group": "group-a",
     "listed_events": 15,
     "updated_events": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "channel_group": "group-b",
     "listed_events": 30,
     "updated_events": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "listed_events",
    "updated_events"
   ],
   "type": "string",
   "default": "listed_events"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/local-event-calendars-two-measure-correlation-secondary-measure-e796097e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)