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unexplained variation
Unexplained variation is everything included in the "other stuff" part of a word equation.
Statistical Model
A statistical model is a simplified way of describing how data are generated. It helps us separate what we can explain using known information from what we cannot explain perfectly. We use statistical models for three main purposes: (1) to understand ...
Empty Model
Empty Model (Null Model) An empty model is a statistical model that describes a quantitative outcome variable using only a single overall value, typically the mean of the response. It is called empty because it contains no explanatory (predictor) ...
intercept
Intercept is the value where a line intersects with the y-axis; the value of y when the x is 0; for example, in the equation for a line, y = mx + b, the y-intercept is represented by b.
gf_dhistogram()
The gf_dhistogram() function is very similar to the gf_histogram() function, however, the difference is that gf_dhistogram() will create a density histogram for a quantitative variable. This means it will show the percentage of cases for each value ...