Ordinary-least-squares linear regression of y on x: slope, intercept, correlation r and co

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curl "https://stats.openverbs.com/v1/regression"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://stats.openverbs.com/v1/regression");
if (res.status === 402) {
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  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://stats.openverbs.com/v1/regression")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header