ggnostic Cook's distance
A function to display stats::cooks.distance().
ggally_nostic_cooksd(
data,
mapping,
...,
linePosition = pf(0.5, length(attr(data, "var_x")), nrow(data) - length(attr(data,
"var_x"))),
lineColor = brew_colors("grey"),
lineType = 2
)data, mapping, ..., lineColor, lineType |
parameters supplied to |
linePosition |
4 / n is the general cutoff point for Cook's Distance |
A line is added at F_p, n - p(0.5) to display the general cutoff point for Cook's Distance.
Reference: Michael H. Kutner, Christopher J. Nachtsheim, John Neter, and William Li. Applied linear statistical models. The McGraw-Hill / Irwin series operations and decision sciences. McGraw-Hill Irwin, 2005, p. 403
ggplot2 plot object
# Small function to display plots only if it's interactive p_ <- GGally::print_if_interactive dt <- broomify(stats::lm(mpg ~ wt + qsec + am, data = mtcars)) p_(ggally_nostic_cooksd(dt, ggplot2::aes(wt, .cooksd)))
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