Simple, Holt trend or Holt-Winters seasonal exponential smoothing with a forecas...
https://time-series-calc.x402tookit.com/exponential-smoothingOverview
Simple, Holt trend or Holt-Winters seasonal exponential smoothing with a forecast h steps ahead and in-sample fit error.
Protocol
x402
Price
$0.03
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
real-time-data/weather
Provider
Time Series Calculators
Source
bazaar
Indexed
2026-11-02 04:13:46
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
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Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"alpha": 0.5,
"beta": 0.3,
"horizon": 3,
"method": "holt",
"values": "10,12,11,13,15,14,16,18"
},
"type": "http"
}
Output Schema
{
"example": {
"alpha": 0.5,
"asOf": "2026-10-21T06:18:22.423Z",
"beta": 0.3,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"finalLevel": 17.5657908,
"finalTrend": 1.14577245,
"fitted": [
null,
12
],
"fittedCount": 7,
"forecast": [
18.7115632,
19.8573357
],
"gamma": null,
"horizon": 3,
"inSampleMae": 1.08524103,
"inSampleRmse": 1.53548832,
"inSampleSse": 16.5040707,
"method": "holt",
"notChecked": [
"parameter optimisation (alpha, beta, gamma are used exactly as given)",
"prediction intervals",
"…1 more"
],
"reasons": [
"Level starts at the first value and trend at (second - first); fitted values begin at position 2.",
"Forecasts use the final state only. Parameters are as given, not optimised.",
"…1 more"
],
"seasonLength": null,
"seasonalIndices": null,
"source": "computed locally (Hyndman and Athanasopoulos, Forecasting: Principles and Practice, exponential smoothing methods)",
"summary": "holt smoothing: forecast 3 steps ahead starts at 18.7116; in-sample RMSE 1.535.",
"verdict": "COMPUTED"
},
"type": "json"
}