symmetric mean
1Elementary symmetric mean — The elementary symmetric mean is based on elementary symmetric polynomials.If x is a tuple with x = (x 1,dots,x n) andalpha p(x) is the corresponding elementary symmetric term of order p,then the respective mean is:M p(x) = sqrt [p] {frac{alpha… …
2Mean absolute percentage error — (MAPE) is measure of accuracy in a fitted time series value in statistics, specifically trending. It usually expresses accuracy as a percentage, and is defined by the formula: where At is the actual value and Ft is the forecast value. The… …
3Mean — 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… …
4Symmetric function — In mathematics, the term symmetric function can mean two different concepts. A symmetric function of n variables is one whose value at any n tuple of arguments is the same as its value at any permutation of that n tuple. While this notion can… …
5Symmetric group — Not to be confused with Symmetry group. A Cayley graph of the symmetric group S4 …
6Symmetric derivative — In mathematics, the symmetric derivative is an operation related to the ordinary derivative.It is defined as::lim {h o 0}frac{f(x+h) f(x h)}{2h}.A function is symmetrically differentiable at a point x if its symmetric derivative exists at that… …
7Symmetric product of an algebraic curve — In mathematics, the n fold symmetric product of an algebraic curve C is the quotient space of the n fold cartesian product: C times; C times; ... times; C or C n by the group action of the symmetric group on n letters permuting the factors. It… …
8Interquartile mean — The interquartile mean (IQM) is a statistical measure of central tendency, much like the mean (in more popular terms called the average), the median, and the mode. The IQM is a truncated mean and so is very similar to the scoring method used in… …
9Truncated mean — A truncated mean or trimmed mean is a statistical measure of central tendency, much like the mean and median. It involves the calculation of the mean after discarding given parts of a probability distribution or sample at the high and low end,… …
10Winsorized mean — A Winsorized mean is a Winsorized statistical measure of central tendency, much like the mean and median, and even more similar to the truncated mean. It involves the calculation of the mean after replacing given parts of a probability… …
