# Supplier Qualification Analytics: Equal-Width Histogram + Weighted Mean

> Supplier Qualification Analytics: Equal-Width Histogram + 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 2026-10-23).

Computes an equal-width histogram and a secondary-measure weighted mean for supplier qualification records (checked_criteria, met_criteria) across up to 200 rows, returning 2 analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-02-172?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/supplier-qualification-analytics-equal-width-histogram-weighted-mean-9f533edb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RFuvPTKkkkZSigQPm-Qrk

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 supplier-qualification-analytics-equal-width-histogram-weighted-mean-9f533edb -d '<json body>'
```

Example prompt: I have 150 supplier qualification records with checked_criteria and met_criteria columns — can you run a histogram with 10 bins on the checked_criteria field and also compute the weighted mean of met_criteria weighted by checked_criteria for each group?

## When to prefer this

Choose this endpoint when you have pre-collected supplier qualification tabular data (checked_criteria and met_criteria columns) and need both a distributional view (histogram) and a weighted central tendency measure in a single low-cost call. It is ideal for offline batch analysis of up to 200 records without requiring live data lookup, external validation, or prediction. Prefer alternatives if you need grouped summaries, row deduplication, correlation analysis, or more than 200 rows.

## Known failure modes

- More than 200 rows submitted — exceeds maximum row limit
- Missing required fields (row_id, company_group, date, checked_criteria, met_criteria) in any row
- Invalid date format (must match YYYY-MM-DD pattern)
- bins parameter outside 1–30 range
- All values null for the selected field — histogram cannot be computed
- Payment not included or insufficient USDC — x402 payment required

## How this service works

Supplier qualification — Equal-width histogram + Secondary-measure weighted mean: Equal-width histogram + Secondary-measure weighted mean for supplied supplier qualification records (checked_criteria, met_criteria). 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: (1) an equal-width histogram showing bin edges, bin counts, and frequency distribution for the selected primary field (checked_criteria or met_criteria) across up to 200 supplied rows; (2) a secondary-measure weighted mean computation where one field weights the average of the other, summarized across the dataset and/or company groups.

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/supplier-qualification-analytics-equal-width-histogram-weighted-mean-9f533edb/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)