goodness of fit


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goodness of fit

n
(Statistics) statistics the extent to which observed sample values of a variable approximate to values derived from a theoretical density, often measured by a chi-square test
References in periodicals archive ?
In the statistical comparison of the data mining algorithms in animal science, goodness of fit criteria have been highlighted very poorly with the exception of few researches (Grzesiak and Zaborski, 2012; Ali et al.
The root mean square error (RMSE) has been used as a goodness of fit criterion to measure model performance in various research studies.
In order to obtain a more complete evaluation of the performance of the models, two additional criteria based on the information theory were applied to compare the goodness of fit of the models (Burnham & Anderson, 2002): the Akaike information criterion (AIC) and the Bayesian information criterion (BIC).
For inferential statistics the observed counts for all the attributes of the ten nominal variables were compared to their expected counts through Chisquare goodness of fit test as univariate analysis.
The other two measures of goodness of fit are the Adjusted Goodness of Fit Index (AGFI), which is defined as AGFI = 1- C/d (1-GFI), and Bentley's Comparative Fit Index (CFI), which is defined as (CFI) = max((N-j) [f.
For this reason, in order to find the best fit for the distribution of household income, the possible use of GB2 and its nested alternative distributions model is investigated and their relative performance have been evaluated through the Bayesian information criterion (BIC), Chi-square goodness of fit with supplemented others measures like sum of square of error (SSE) and sum of absolute error (SAE) measures.
According to Child (2006), three common measures of overall goodness of fit are a chi-square ([chi square]) measure, goodness of fit index (GFI) and root mean square residual (RMR).
Table 2 presents the goodness of fit indexes obtained for all models.
006) and goodness of fit index= GFI (goodness of fit index), AGFI (adjusted goodness of fit index), PNFI (parsimony normed fit index), CFI (comparative fit index), NNFI (non-normed fit index) , NFI(normed fit index) is more than 0.
According to the results of goodness of fit in Gompertz and Logistic growth curve models the coefficient of determination (R2) and adjusted coefficient of determination (adj.