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weighted harmonic mean

См. также в других словарях:

  • Weighted geometric mean — In statistics, given a set of data, : X = { x 1, x 2, ..., x n } and corresponding weights, : W = { w 1, w 2, ..., w n } the weighted geometric mean is calculated as: ar{x} = left(prod {i=1}^n x i^{w i} ight)^{1 / sum {i=1}^n w i} = quad exp… …   Wikipedia

  • Harmonic mean — In mathematics, the harmonic mean (formerly sometimes called the subcontrary mean) is one of several kinds of average. Typically, it is appropriate for situations when the average of rates is desired.The harmonic mean H of the positive real… …   Wikipedia

  • Mean — This article is about the statistical concept. For other uses, see Mean (disambiguation). In statistics, mean has two related meanings: the arithmetic mean (and is distinguished from the geometric mean or harmonic mean). the expected value of a… …   Wikipedia

  • Weighted mean — The weighted mean is similar to an arithmetic mean (the most common type of average), where instead of each of the data points contributing equally to the final average, some data points contribute more than others. The notion of weighted mean… …   Wikipedia

  • mean — mean1 /meen/, v., meant, meaning. v.t. 1. to have in mind as one s purpose or intention; intend: I meant to compliment you on your work. 2. to intend for a particular purpose, destination, etc.: They were meant for each other. 3. to intend to… …   Universalium

  • mean — 1. (ethical) In many ethical systems the right path is presented as one that strikes a happy medium. It strays neither one way nor the other, but represents moderation, harmony, balance, and the avoidance of pitfalls on either side. Aristotle s… …   Philosophy dictionary

  • Generalized mean — In mathematics, a generalized mean, also known as power mean or Hölder mean (named after Otto Hölder), is an abstraction of the Pythagorean means including arithmetic, geometric, and harmonic means. Contents 1 Definition 2 Properties 2.1 …   Wikipedia

  • Geometric mean — The geometric mean, in mathematics, is a type of mean or average, which indicates the central tendency or typical value of a set of numbers. It is similar to the arithmetic mean, which is what most people think of with the word average, except… …   Wikipedia

  • Lehmer mean — The Lehmer mean of a tuple x of positive real numbers is defined as::L p(x) = frac{sum {k=1}^{n} x k^p}{sum {k=1}^{n} x k^{p 1.The Weighted Lehmer mean with respect to a tuple w of positive weights is defined as::L {p,w}(x) = frac{sum {k=1}^{n} w …   Wikipedia

  • Chisini mean — In mathematics, a function f of n variables x1, ..., xn leads to a Chisini mean M if for every vector <x1 ... xn>, there exists a unique M such that f(M,M, ..., M) = f(x1,x2, ..., xn). The arithmetic, harmonic, geometric, generalised,… …   Wikipedia

  • Cauchy boundary condition — In mathematics, a Cauchy (pronounced koe she ) boundary condition imposed on an ordinary differential equation or a partial differential equation specifies both the values a solution of a differential equation is to take on the boundary of the… …   Wikipedia

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