Rescale regression results by multiplying by 2 standard deviations
by_2sd rescales regression results to facilitate making dot-and-whisker plots using
A data.frame including the variables
The data analyzed in the models whose results are recorded in df
by_2sd multiplies the results from regression models saved as tidy data frames for predictors that are not binary by twice the standard deviation of these variables in the dataset analyzed. Standardizing in this way yields coefficients that are directly comparable to those for untransformed binary predictors (Gelman 2008) and so facilitates plotting using
An alternative available in some circumstances is to pass a model object to
standardize before passing the results to
tidy and then on to
dwplot. The advantage of
by_2sd is that it takes as its input is a tidy data.frame and so is not restricted to only those model objects that
A tidy data.frame
Gelman, Andrew. 2008. "Scaling Regression Inputs by Dividing by Two Standard Deviations." Statistics in Medicine, 27:2865-2873.
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