Given a non-replicated model of a factorial plan, this function provides a QQ plot of the effects of the model, labeling all the effects.
daniel_plot_qq(model, alpha = 0.5, xlim = c(-3, 3))
a QQ plot (GGPlot2 object) with the effects of the model
a linear model
the transparency of the horizontal lines
the limits of the x-axis
daniel_plot_qq(lm(Y~A*B*C*D, data=filtration))
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