In the new research, Christopher Ruff, a biological anthropologist at Johns Hopkins, and his colleagues used the regression equations in a new way.
22.
Like the multiple regression equation transform, grid-based methods use a low-order interpolation method for converting map coordinates, but in two dimensions instead of three.
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This puts SEM at a disadvantage with respect to systems of regression equation methods, though the latter are limited in their ability to fit unobserved'latent'constructs.
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We can explore one issue caused by multicollinearity by examining the process of attempting to obtain estimates for the parameters of the multiple regression equation
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Thus for example a regression equation of the form ( with ) establishes a best-fit plane in three-dimensional space when there are two explanatory variables.
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When using linear regression, multiple data points are graphed and the points can be fitted with a linear regression equation, which will provide a slope.
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The regression equation that was obtained in the laboratory-based study ( 209 & minus; 0.7 x age ), was virtually identical to that of the meta-study.
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In spatial modeling, the concept of spatial association allows the use of covariates in a regression equation to predict the geographic field and thus produce a map.
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In empirical work an elasticity is the estimated coefficient in a linear regression equation where both the dependent variable and the independent variable are in natural logs.
30.
Following the structure of the regression equation provided above, variables are entered by the following sequence : matching variable M, grouping variable G, and the interaction variable MG.
