object EWMA extends Serializable
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- EWMA.scala
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- def alpha(halfLife: FiniteDuration, collectInterval: FiniteDuration): Double
Calculate the alpha (decay factor) used in akka.cluster.EWMA from specified half-life and interval between observations.
Calculate the alpha (decay factor) used in akka.cluster.EWMA from specified half-life and interval between observations. Half-life is the interval over which the weights decrease by a factor of two. The relevance of each data sample is halved for every passing half-life duration, i.e. after 4 times the half-life, a data sample’s relevance is reduced to 6% of its original relevance. The initial relevance of a data sample is given by 1 – 0.5 ^ (collect-interval / half-life).
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