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variation estimation

См. также в других словарях:

  • Coefficient of variation — In probability theory and statistics, the coefficient of variation (CV) is a normalized measure of dispersion of a probability distribution. It is also known as unitized risk or the variation coefficient. The absolute value of the CV is sometimes …   Wikipedia

  • Trend estimation — is a statistical technique to aid interpretation of data. When a series of measurements of a process are treated as a time series, trend estimation can be used to make and justify statements about tendencies in the data. By using trend estimation …   Wikipedia

  • Software development effort estimation — is the process of predicting the most realistic use of effort required to develop or maintain software based on incomplete, uncertain and/or noisy input. Effort estimates may be used as input to project plans, iteration plans, budgets, investment …   Wikipedia

  • Minimum distance estimation — (MDE) is a statistical method for fitting a mathematical model to data, usually the empirical distribution. Contents 1 Definition 2 Statistics used in estimation 2.1 Chi square criterion …   Wikipedia

  • Maximum spacing estimation — The maximum spacing method tries to find a distribution function such that the spacings, D(i), are all approximately of the same length. This is done by maximizing their geometric mean. In statistics, maximum spacing estimation (MSE or MSP), or… …   Wikipedia

  • Maximum a posteriori estimation — In Bayesian statistics, a maximum a posteriori probability (MAP) estimate is a mode of the posterior distribution. The MAP can be used to obtain a point estimate of an unobserved quantity on the basis of empirical data. It is closely related to… …   Wikipedia

  • Explained variation — In statistics, explained variation or explained randomness measures the proportion to which a mathematical model accounts for the variation (= apparent randomness) of a given data set. Often, variation is quantified as variance; then, the more… …   Wikipedia

  • Periodic variation — In statistics, the periodic variation of a time series is its cyclic variation, either regular or semiregular. See also periodic function. A completely regular cyclic variation in a time series might be dealt with in time series analysis by using …   Wikipedia

  • Kernel density estimation — Die Kerndichteschätzung (auch Parzen Methode[1], englisch: Kernel Density Estimation, KDE) ist ein Verfahren zur Darstellung einer eindimensionalen Verteilung. In der klassischen Statistik geht man davon aus, dass statistische Phänomene einer… …   Deutsch Wikipedia

  • Croissance économique — Estimation du PIB/habitant depuis l an 1 La croissance économique désigne la variation positive de la production de biens et de services dans une économie sur une période donnée[1], généralement une période longue. En p …   Wikipédia en Français

  • Heritability — is the proportion of phenotypic variation in a population that is due to genetic variation between individuals. Phenotypic variation among individuals may be due to genetic, environmental factors, and/or random chance[1]. Heritability analyzes… …   Wikipedia

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