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least squares
(redirected from Least-squares analysis)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 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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We generally assume that least-squares analysis is sufficient and indeed it is often so.
A linear least-squares analysis of these data yields the equation y = 0.
Multivariate ordinary least-squares analysis adjusted for age, sex, race, marital status, and education revealed that obese respondents were significantly more likely to report poorer self-rated health compared with their nonobese counterparts (P [less than or equal to] 0.
 
 
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