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least squares

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia 0.03 sec.
least squares
a method of regression analysis. The line on a graph that best summarizes the relationship between two variables is the one that ensures that there is the least value of the sum of the squares of the deviation between the fitted curve and each of the original data points.


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A model, developed using the partial least squares regression statistical method, predicted whey fat content with a root mean square error of cross-validation of 0.
The investigated hedonic approaches are: 1) ordinary least squares estimation, 2) robust MM-estimation, 3) structural time series estimation and 4) robust local regression.
The system uses principal component analysis and a soft independent modeling class analogy technique for pattern recognition and classification of samples, and partial least squares regression for the quantification of parameters of interest in wine production.
 
 
 
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