# UV Layouts — Two-Measure Correlation + Explicit Missing-Value Fill

> UV Layouts — Two-Measure Correlation + Explicit Missing-Value Fill is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Computes two-measure correlation and fills missing values in UV layout records (island_count, occupied_percent) for up to 200 supplied rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-06-184?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uv-layouts-two-measure-correlation-explicit-missing-value-fill-1924cdde
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6N13MrubnYwdw6WwSaVtt

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 uv-layouts-two-measure-correlation-explicit-missing-value-fill-1924cdde -d '<json body>'
```

Example prompt: I have up to 200 rows of UV layout data with island_count and occupied_percent fields — can you run a two-measure correlation between those two metrics and also fill any missing values using median imputation?

## When to prefer this

Choose this endpoint when you have pre-collected UV layout tabular data with island_count and occupied_percent fields and need both a correlation analysis between those two measures and missing-value imputation in a single paid call. It is best suited for offline/batch analytical use on supplied data (up to 200 rows) with no need for live lookups, predictions, or external integrations. Prefer alternatives if you need more than 200 rows, real-time data enrichment, or analysis of more than two measures.

## Known failure modes

- Input rows array is empty or exceeds 200 items — validation error
- Invalid date format (not YYYY-MM-DD) in any row — schema rejection
- Unrecognized fill method enum value — validation error
- Both measure fields are entirely null — correlation computation may fail or return undefined
- row_id missing or empty string — required field validation error
- Payment not completed via x402 protocol — request rejected

## How this service works

UV layouts — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied uv layouts records (island_count, occupied_percent). 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 sharing local engines: (1) a two-measure correlation report showing the statistical relationship between island_count and occupied_percent, and (2) an explicit missing-value fill report where nulls in the specified field are replaced using the chosen method (zero, mean, or median). Results cover up to 200 input rows with no external lookups or live data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "asset_group",
     "date",
     "island_count",
     "occupied_percent"
    ],
    "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
     },
     "island_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "occupied_percent": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "asset_group": "group-a",
     "island_count": 10,
     "occupied_percent": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "asset_group": "group-b",
     "island_count": 20,
     "occupied_percent": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "asset_group": "group-a",
     "island_count": 15,
     "occupied_percent": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "asset_group": "group-b",
     "island_count": 30,
     "occupied_percent": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "island_count",
    "occupied_percent"
   ],
   "type": "string",
   "default": "island_count"
  },
  "method": {
   "enum": [
    "zero",
    "mean",
    "median"
   ],
   "type": "string",
   "default": "median"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uv-layouts-two-measure-correlation-explicit-missing-value-fill-1924cdde/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)