# Procurement Cycles — Adjacent Row Changes + Secondary-Measure Weighted Mean

> Procurement Cycles — Adjacent Row Changes + Secondary-Measure 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 2026-10-26).

Computes adjacent row delta changes and secondary-measure weighted mean statistics for procurement cycle records (request_days, approval_days) supplied by the caller.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-operations-06-159?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/procurement-cycles-adjacent-row-changes-secondary-measure-weighted-mean-f74b86e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SXa30fBPxBIq6BBmqIN30

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 procurement-cycles-adjacent-row-changes-secondary-measure-weighted-mean-f74b86e5 -d '<json body>'
```

Example prompt: Can you run adjacent row changes and a weighted mean analysis on my procurement cycle data — I have rows with request_days and approval_days fields for teams like group-a and group-b across October 2026, and I want to analyze request_days specifically?

## When to prefer this

Choose this endpoint when you need to analyze procurement cycle timing data with both row-to-row delta tracking and weighted mean summarization in a single low-cost call. Best suited for operations analysts processing up to 200 procurement records who need adjacent difference and weighted average insights without any external data dependencies.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, date, request_days, approval_days) — validation error
- Invalid date format (not YYYY-MM-DD) — schema validation failure
- Null values in the selected field may affect weighted mean computation
- field enum value not one of 'request_days' or 'approval_days' — invalid input

## How this service works

Procurement cycles — Adjacent row changes + Secondary-measure weighted mean: Adjacent row changes + Secondary-measure weighted mean for supplied procurement cycles records (request_days, approval_days). 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) adjacent row changes showing delta values between consecutive rows for the selected field (request_days or approval_days), and (2) a secondary-measure weighted mean computed across the supplied procurement records. Both reports are computed locally on the supplied data with no external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/procurement-cycles-adjacent-row-changes-secondary-measure-weighted-mean-f74b86e5/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)