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total variability

См. также в других словарях:

  • Heart rate variability — (HRV) is a measure of the beat to beat variations in heart rate. It is usually calculated by analyzing a time series of beat to beat intervals from the ECG or of beat to beat intervals derived from an arterial pressure tracing.Various measures of …   Wikipedia

  • Sharpe ratio — A measure of a portfolio s excess return relative to the total variability of the portfolio. Related: treynor index A ratio of reward to variability developed by William F. Sharpe to measure the performance of mutual funds without regard to their …   Financial and business terms

  • ANOVA Gauge R&R — (or ANOVA Gauge Repeatability Reproducibility) is a Measurement Systems Analysis technique which uses Analysis of Variance (ANOVA) random effects model to assess a measurement system. The evaluation of a measurement system is not limited to… …   Wikipedia

  • Global biodiversity — Examples of the biodiversity of the Earth. The biodiversity of planet Earth is the total variability of life forms forms. Currently about 1.9 million species are known, but this is thought to be a significant underestimate of the total number of… …   Wikipedia

  • Analysis Of Variance - ANOVA — A statistical analysis tool that separates the total variability found within a data set into two components: random and systematic factors. The random factors do not have any statistical influence on the given data set, while the systematic… …   Investment dictionary

  • Sigma Draconis — Starbox begin name=Sigma Draconis Starbox observe epoch=J2000 constell=Draco ra=RA|19|32|21.5908cite web url=http://simbad.u strasbg.fr/simbad/sim id?Ident=NSV%2012176 protocol=html title=SIMBAD Query Result: NSV 12176 Variable Star… …   Wikipedia

  • Partial correlation — In probability theory and statistics, partial correlation measures the degree of association between two random variables, with the effect of a set of controlling random variables removed. Contents 1 Formal definition 2 Computation 2.1 Using… …   Wikipedia

  • Statistical model validation — Model validation is possibly the most important step in the model building sequence. It is also one of the most overlooked. Often the validation of a model seems to consist of nothing more than quoting the R 2 statistic from the fit (which… …   Wikipedia

  • Regression model validation — In statistics, model validation is possibly the most important step in the model building sequence. It is also one of the most overlooked.[citation needed] Often the validation of a model seems to consist of nothing more than quoting the R2… …   Wikipedia

  • Intermittent power source — [ Erie Shores Wind Farm monthly output over a two year period] An intermittent power source is a source of electric power generation that may be uncontrollably variable or more intermittent than conventional power sources, and therefore non… …   Wikipedia

  • Intermittent energy source — An intermittent energy source is any source of energy that is not continuously available due to some factor outside direct control. The intermittent source may be quite predictable, for example, tidal power, but cannot be dispatched to meet the… …   Wikipedia

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