# Null Coverage Analytics: Trailing Mean Series + Equal-Width Histogram

> Null Coverage Analytics: Trailing Mean Series + Equal-Width Histogram is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Computes a trailing mean time series and an equal-width histogram over user-supplied null coverage data (missing_values and total_values fields) for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-03-148?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/null-coverage-analytics-trailing-mean-series-equal-width-histogram-b108ebb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dSEWh3j7XejUFnryUrWde

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 null-coverage-analytics-trailing-mean-series-equal-width-histogram-b108ebb9 -d '<json body>'
```

Example prompt: I have 150 daily null-coverage records with missing_values and total_values fields — can you compute a trailing mean series with a window of 7 and an equal-width histogram with 10 bins on the missing_values field?

## When to prefer this

Choose this endpoint when you have pre-collected null coverage records (missing_values + total_values per row) and need two lightweight statistical summaries — a rolling mean trend and a frequency histogram — without any external data fetching, prediction, or professional interpretation. Ideal for data quality pipelines, audit reports, and monitoring dashboards where you want fast, local-only analytics at minimal cost ($0.01 USDC for both reports).

## Known failure modes

- Fewer than 1 row or more than 200 rows submitted — request rejected
- Window size larger than the number of rows — trailing mean may be undefined or partial
- bins parameter outside 1–30 range — validation error
- missing required fields (row_id, date, missing_values, total_values) in any row — schema validation failure
- date strings not matching YYYY-MM-DD pattern — parsing error
- total_values or missing_values outside allowed numeric range — rejected

## How this service works

Null coverage — Trailing mean series + Equal-width histogram: Trailing mean series + Equal-width histogram for supplied null coverage records (missing_values, total_values). 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 trailing mean time series computed over the selected field (missing_values or total_values) using the specified rolling window, and (2) an equal-width histogram dividing the same field's values into the specified number of bins with counts per bin. Both reports are derived entirely from the supplied row data with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bins": {
   "type": "integer",
   "default": 5,
   "maximum": 30,
   "minimum": 1
  },
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "dataset_group",
     "date",
     "missing_values",
     "total_values"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "total_values": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "dataset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "missing_values": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "total_values": 1,
     "dataset_group": "group-a",
     "missing_values": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "total_values": 2,
     "dataset_group": "group-b",
     "missing_values": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "total_values": 3,
     "dataset_group": "group-a",
     "missing_values": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "total_values": 4,
     "dataset_group": "group-b",
     "missing_values": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "missing_values",
    "total_values"
   ],
   "type": "string",
   "default": "missing_values"
  },
  "window": {
   "type": "integer",
   "default": 2,
   "maximum": 200,
   "minimum": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/null-coverage-analytics-trailing-mean-series-equal-width-histogram-b108ebb9/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)