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  2. Goodness of fit - Wikipedia

    en.wikipedia.org/wiki/Goodness_of_fit

    Linear regression; Simple regression ... The goodness of fit of a statistical model describes how well it fits a set of observations. Measures of goodness of fit ...

  3. Coefficient of determination - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_determination

    Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).

  4. Regression validation - Wikipedia

    en.wikipedia.org/wiki/Regression_validation

    Linear regression; Simple regression ... In statistics, regression validation is the process of ... The validation process can involve analyzing the goodness of fit ...

  5. Deviance (statistics) - Wikipedia

    en.wikipedia.org/wiki/Deviance_(statistics)

    In statistics, deviance is a goodness-of-fit statistic for a statistical model; it is often used for statistical hypothesis testing.It is a generalization of the idea of using the sum of squares of residuals (SSR) in ordinary least squares to cases where model-fitting is achieved by maximum likelihood.

  6. Linear regression - Wikipedia

    en.wikipedia.org/wiki/Linear_regression

    Goodness of fit; Studentized residual; ... In statistics, linear regression is a model that estimates the linear relationship between a scalar response ...

  7. Simple linear regression - Wikipedia

    en.wikipedia.org/wiki/Simple_linear_regression

    Goodness of fit; Studentized residual; ... In statistics, simple linear regression (SLR) is a linear regression model with a single explanatory variable. [1] [2] ...

  8. Mallows's Cp - Wikipedia

    en.wikipedia.org/wiki/Mallows's_Cp

    In statistics, Mallows's, [1] [2] named for Colin Lingwood Mallows, is used to assess the fit of a regression model that has been estimated using ordinary least squares.It is applied in the context of model selection, where a number of predictor variables are available for predicting some outcome, and the goal is to find the best model involving a subset of these predictors.

  9. Reduced chi-squared statistic - Wikipedia

    en.wikipedia.org/wiki/Reduced_chi-squared_statistic

    In statistics, the reduced chi-square statistic is used extensively in goodness of fit testing. It is also known as mean squared weighted deviation (MSWD) in isotopic dating [1] and variance of unit weight in the context of weighted least squares. [2] [3]