Kotlin中的逆方差

import kotlin.math.pow

fun calculateVariance(data: List<Double>): Double {
    val mean = data.average()
    val squaredDifferences = data.map { (it - mean).pow(2) }
    return squaredDifferences.sum() / data.size
}

fun calculateInverseVariance(data: List<Double>): Double {
    val variance = calculateVariance(data)
    return 1 / variance
}

fun main() {
    val data = listOf(1.0, 2.0, 3.0, 4.0, 5.0)
    val inverseVariance = calculateInverseVariance(data)
    println("Inverse Variance: $inverseVariance")
}