Correlation (Pearson) · Correlation

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/correlation", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "x": [
      1,
      2,
      3,
      4,
      5
    ],
    "y": [
      2,
      4,
      6,
      8,
      10
    ]
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/correlation" \
  -H "Content-Type: application/json" \
  -d '{"x":[1,2,3,4,5],"y":[2,4,6,8,10]}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "interpretation": "perfect positive linear relationship",
  "n": 5,
  "r": 1,
  "rSquared": 1
}