# Research Task Completion — Two-Measure Correlation + Secondary-Measure Weighted Mean

> Research Task Completion — 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 2026-10-17).

Computes the correlation between completed_tasks and assigned_tasks, plus a weighted mean of a chosen secondary measure, across up to 200 research task completion records grouped by company and date.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-22-181?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/research-task-completion-two-measure-correlation-secondary-measure-4a50654e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_I_ik2f6q400_xZooFuTsd

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 research-task-completion-two-measure-correlation-secondary-measure-4a50654e -d '<json body>'
```

Example prompt: Can you run a two-measure correlation between completed_tasks and assigned_tasks, plus a weighted mean for completed_tasks, on this dataset of task completion records for our research groups? I have up to 80 rows covering groups like 'group-a' and 'group-b' from October 2026.

## When to prefer this

Choose this endpoint when you need two fast, self-contained statistical reports — a two-measure correlation and a weighted mean — computed on your own supplied task-completion data without any external lookup or live data integration. Ideal for batch offline analysis of research team performance where you already hold the rows locally and want structured statistical output at minimal cost ($0.01 USDC for both reports up to 200 rows).

## Known failure modes

- Input exceeds 200 rows — request rejected with validation error
- Missing required fields (row_id, date, company_group, completed_tasks, assigned_tasks) cause row-level rejection
- Date strings not matching YYYY-MM-DD pattern fail schema validation
- Null values in both measure columns may produce undefined or NaN correlation
- Fewer than 2 valid rows yields degenerate or undefined correlation result
- Invalid 'field' enum value (not 'completed_tasks' or 'assigned_tasks') causes schema error

## How this service works

Research task completion — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied research task completion records (completed_tasks, assigned_tasks). 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 analytical reports: (1) a Pearson (or equivalent) correlation coefficient between completed_tasks and assigned_tasks across the submitted rows, and (2) a weighted mean of the selected secondary measure (completed_tasks or assigned_tasks), computed locally without external lookups. Results cover up to 200 input rows grouped by company_group and date.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/research-task-completion-two-measure-correlation-secondary-measure-4a50654e/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)