# Illustration Estimates Numeric Row Ordering and Two-Measure Correlation

> Illustration Estimates Numeric Row Ordering and Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Performs numeric row ordering and two-measure correlation analysis on illustration estimate records (estimated_hours vs actual_hours) for up to 200 rows, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-19-120?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/illustration-estimates-numeric-row-ordering-and-two-measure-correlation-798f3955
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hb4j3sOCTvLIw5gyGgEcJ

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 illustration-estimates-numeric-row-ordering-and-two-measure-correlation-798f3955 -d '<json body>'
```

Example prompt: Can you rank these illustration project records by estimated_hours and also check how well estimated hours correlates with actual hours? I have rows for asset groups like 'backgrounds' and 'characters' with dates from 2026-10-01 through 2026-10-04.

## When to prefer this

Choose this endpoint when you need both a ranked ordering of illustration estimate rows and a correlation analysis between estimated and actual hours in a single $0.01 call. It is specifically designed for creative/illustration project data with asset_group segmentation and is ideal for post-sprint retrospectives, estimation accuracy audits, or studio capacity planning with up to 200 records.

## Known failure modes

- Missing required row fields (row_id, date, estimated_hours, actual_hours) cause validation errors
- Exceeding 200 rows returns an error or truncated result
- Invalid date format (non YYYY-MM-DD) causes rejection
- Null values in both measure fields may reduce correlation reliability
- Payment failure (x402) prevents endpoint access

## How this service works

Illustration estimates — Numeric row ordering + Two-measure correlation: Numeric row ordering + Two-measure correlation for supplied illustration estimates records (estimated_hours, actual_hours). 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 analytical reports: (1) a numeric row ordering of the supplied records ranked by the specified hours field (estimated_hours or actual_hours), and (2) a two-measure correlation analysis between estimated_hours and actual_hours across all submitted rows. All computation uses local analytical engines with no external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/illustration-estimates-numeric-row-ordering-and-two-measure-correlation-798f3955/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)