# Snow Observations Secondary-Measure Weighted Mean + Keyed Dataset Comparison

> Snow Observations Secondary-Measure Weighted Mean + 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 2026-10-24).

Computes a secondary-measure weighted mean and performs a keyed dataset comparison on up to 200 snow observation records (snow_depth_cm, snowfall_cm), returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-weather-09-186?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/snow-observations-secondary-measure-weighted-mean-keyed-dataset-0bb382dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uOOXetiMhOib0jAxDIapo

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 snow-observations-secondary-measure-weighted-mean-keyed-dataset-0bb382dc -d '<json body>'
```

Example prompt: I have two sets of snow station readings (up to 200 rows each) with snow_depth_cm and snowfall_cm — can you run a secondary-measure weighted mean on the primary dataset and compare it against the second dataset by row key, using snow_depth_cm as the target field?

## When to prefer this

Choose this endpoint when you have pre-collected snow observation data (up to 200 rows) and need both a weighted mean calculation using one snow metric as a weight for another AND a keyed comparison between two datasets — all in a single $0.01 call with no external data fetching or prediction involved. Prefer this over single-report endpoints when both analyses are needed simultaneously to save cost and round-trips.

## Known failure modes

- More than 200 rows submitted — request will be rejected or truncated
- Missing required fields (row_id, station_group, date, snow_depth_cm, snowfall_cm) cause validation errors
- Invalid date format (not YYYY-MM-DD) triggers schema validation failure
- Null values in the weighted field may affect mean calculation or produce null results
- Empty rows array causes a minItems validation error
- Mismatched row_ids between primary and comparison dataset reduce keyed comparison coverage

## How this service works

Snow observations — Secondary-measure weighted mean + Keyed dataset comparison: Secondary-measure weighted mean + Keyed dataset comparison for supplied snow observations records (snow_depth_cm, snowfall_cm). 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 secondary-measure weighted mean calculation for the specified field (snow_depth_cm or snowfall_cm) across the supplied rows, and (2) a keyed dataset comparison that aligns rows by row_id between the primary and comparison datasets and highlights differences in snow measurement values.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/snow-observations-secondary-measure-weighted-mean-keyed-dataset-0bb382dc/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)