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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including @jacobq/ml-levenberg-marquardt. Try it out:
const levenbergMarquardt = require('ml-levenberg-marquardt');
function sinFunction([a, b]) {
return (t) => a * Math.sin(b * t);
}
var len = 20;
var data = {
x: new Array(len),
y: new Array(len)
};
var sampleFunction = sinFunction([2, 2]);
for (var i = 0; i < len; i++) {
data.x[i] = i;
data.y[i] = sampleFunction(i);
}
const options = {
damping: 0.001,
initialValues: [3, 3]
};
var ans = levenbergMarquardt(data, sinFunction, options);
console.log(ans);
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