• Home
• it.unibo.scafi
• scafi-commons_2.11
• 1.3.0
• source code
• StatisticsUtils.scala

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

it.unibo.utils.StatisticsUtils.scala Maven / Gradle / Ivy

package it.unibo.utils

object StatisticsUtils {
  import Numeric.Implicits._

  def mean[T: Numeric](xs: Iterable[T]): Double = xs.sum.toDouble / xs.size

  def variance[T: Numeric](xs: Iterable[T]): Double = {
    val avg = mean(xs)
    xs.map(_.toDouble).map(a => math.pow(a - avg, 2)).sum / xs.size
  }

  def stdDev[T: Numeric](xs: Iterable[T]): Double = math.sqrt(variance(xs))
}