# Color Swatches Secondary-Measure Weighted Mean with Explicit Missing-Value Fill

> Color Swatches Secondary-Measure Weighted Mean with 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 2026-11-02).

Computes a secondary-measure weighted mean and fills missing values for color swatch records (luminance and chroma) across up to 200 rows, returning 2 analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-20-187?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/color-swatches-secondary-measure-weighted-mean-with-explicit-missing-0da12c76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ctmtdCxD7T74edFXolFKc

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 color-swatches-secondary-measure-weighted-mean-with-explicit-missing-0da12c76 -d '<json body>'
```

Example prompt: I have a dataset of color swatches with luminance and chroma readings — some values are missing. Can you compute the secondary-measure weighted mean for luminance using median to fill missing values? I have about 50 rows across two asset groups.

## When to prefer this

Choose this endpoint when you need offline/local statistical aggregation (weighted mean) and missing-value imputation specifically for color swatch data with luminance and chroma measurements, and you want two reports in a single call without any external lookup or live data dependency.

## Known failure modes

- Exceeds 200-row limit — request rejected with validation error
- Missing required fields (row_id, asset_group, date, luminance, chroma) — row-level validation failure
- Invalid date format (not YYYY-MM-DD) — schema validation error
- Numeric values out of allowed range — validation rejection
- Invalid enum value for field or method parameters — schema error

## How this service works

Color swatches — Secondary-measure weighted mean + Explicit missing-value fill: Secondary-measure weighted mean + Explicit missing-value fill for supplied color swatches records (luminance, chroma). 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 2 analytical reports containing the secondary-measure weighted mean computed for the specified field (luminance or chroma), with missing values explicitly filled using the chosen method (zero, mean, or median), applied across up to 200 supplied color swatch rows.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/color-swatches-secondary-measure-weighted-mean-with-explicit-missing-0da12c76/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)