// calculate euclidean distance
export function euclideanDistance(a: number[], b: number[]) {
    let sum = 0;
    for (let i=0; i<a.length; i++) {
        sum += (a[i]-(b[i] || 0)) ** 2
    }
    return Math.sqrt(sum)
}

// calculate minkowski distance
export function minkowskiDistance(a: number[], b: number[], p: number): number {
    let sum = 0
    for (let i=0; i<a.length; i++) {
        sum += Math.abs((a[i]-(b[i]||0))**p)
    }
    return sum ** (1/p)
}

export function jaccardDistance(a: number[], b: number[]): number {
    return 0.0
}

export function cosineDistance(a: number[], b: number[]): number {
    return 0.0
}