rejection of outliers

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• Outlier — This article is about the statistical term. For other uses, see Outlier (disambiguation). Figure 1. Box plot of data from the Michelson Morley Experiment displaying outliers in the middle column. In statistics, an outlier[1] is an observ …   Wikipedia

• Chauvenet's criterion — In statistical theory, the Chauvenet s criterion (named for William Chauvenet[1]) is a means of assessing whether one piece of experimental data an outlier from a set of observations, is likely to be spurious. To apply Chauvenet s criterion,… …   Wikipedia

• Dixon's Q test — In statistics, Dixon s Q test, or simply the Q test, is used for identification and rejection of outliers. Per Dean and Dixon, and others, this test should be used sparingly and never more than once in a data set. To apply a Q test for bad data,… …   Wikipedia

• Selection bias — is a statistical bias in which there is an error in choosing the individuals or groups to take part in a scientific study.[1] It is sometimes referred to as the selection effect. The term selection bias most often refers to the distortion of a… …   Wikipedia

• Ausreisser — Ein Ausreißer Messwert Der Boxplot wird über einem Zahlenstrahl dargestellt. In der Statistik spricht man von einem Ausreißer, wenn ein …   Deutsch Wikipedia

• Ausreißer — Ein Ausreißer Messwert Der Boxplot wird über einem Zahlenstrahl dargestellt. In der Statistik spricht man von …   Deutsch Wikipedia

• Outlier — Ein Ausreißer Messwert Der Boxplot wird über einem Zahlenstrahl dargestellt. In der Statistik spricht man von einem Ausreißer, wenn ein …   Deutsch Wikipedia

• Robust statistics — provides an alternative approach to classical statistical methods. The motivation is to produce estimators that are not unduly affected by small departures from model assumptions. Contents 1 Introduction 2 Examples of robust and non robust… …   Wikipedia

• Redescending M-estimator — Redescending M estimators are very popular Ψ type M estimators which have Ψ functions that are non decreasing near the origin, but decreasing toward 0 far from the origin. Their ψ functions can be chosen to redescend smoothly to zero, so that… …   Wikipedia

• statistics — /steuh tis tiks/, n. 1. (used with a sing. v.) the science that deals with the collection, classification, analysis, and interpretation of numerical facts or data, and that, by use of mathematical theories of probability, imposes order and… …   Universalium

• Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function …   Wikipedia