arrow_mul.RdScale vector arrows to fill proportion of the data.
arrow_mul(arrows, data, at = c(0, 0), fill = 0.75)a two-column matrix-like object containing coordinates for the arrows/vectors on x and y axes.
a two-column matrix-like object containing coordinates of the data on the x and y axes.
numeric vector of length 2; location of the origin of the arrows.
numeric; what proportion of the range of the data to fill
a numeric multiplier that will scale the arrows