# Proposal Preparation Two-Measure Correlation and Keyed Dataset Comparison

> Proposal Preparation Two-Measure Correlation and Keyed Dataset Comparison 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 Pearson/rank correlation between completed_sections and planned_sections, plus a keyed row-by-row comparison between two supplied proposal preparation datasets, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-08-183?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/proposal-preparation-two-measure-correlation-and-keyed-dataset-d6ea0dfd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ztTzkSgaU4aWW0rC-cdxD

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 proposal-preparation-two-measure-correlation-and-keyed-dataset-d6ea0dfd -d '<json body>'
```

Example prompt: Analyze these two sets of proposal preparation records — each with row_id, document_group, date, completed_sections, and planned_sections — and give me a correlation report between the two measures plus a keyed comparison between the two datasets. I have up to 50 rows in each group.

## When to prefer this

Choose this endpoint when you have proposal preparation records with both planned_sections and completed_sections fields and need two specific offline analyses: a two-measure Pearson/rank correlation and a keyed row-by-row dataset comparison between two supplied batches. Ideal for comparing planning accuracy against execution within or across document groups, up to 200 rows, at a flat cost of $0.01 USDC for both reports. Not suitable for live data fetching, forecasting, or professional advisory outputs.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, date, completed_sections, planned_sections) — validation error
- Date field does not match YYYY-MM-DD pattern — schema validation failure
- Too few rows to compute meaningful correlation — degenerate result
- Mismatched row_ids between primary and secondary datasets — incomplete keyed comparison
- Null values in both measures for all rows — correlation undefined

## How this service works

Proposal preparation — Two-measure correlation + Keyed dataset comparison: Two-measure correlation + Keyed dataset comparison for supplied proposal preparation records (completed_sections, planned_sections). 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

Two independent analytical reports: (1) a two-measure correlation report quantifying the statistical relationship between completed_sections and planned_sections across submitted rows; (2) a keyed dataset comparison report matching rows by row_id between the primary and secondary datasets and surfacing differences in the two measures. Both reports are computed locally from supplied data with no external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proposal-preparation-two-measure-correlation-and-keyed-dataset-d6ea0dfd/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)