misc.js

misc.js

function clamp(v, m, M) {
    return v < m ? m : v > M ? M : v;
}

function average(arr) {
    return arr.reduce((prev, curr) => prev + curr, 0) / arr.length;
}

// triangle m0 x l of area 1 (linear degradation)
function averageWithDegradation(arr) {
    const l = arr.length;
    const m0 = 2 / l;
    const avg = 0;
    const i = 0;
    for (let v of arr) {
        const r = i / l;
        const m = m0 * (1 - r);
        avg += m * v;
    }
    return avg;
}