circ_coef
computes the coordinates of the inflection point of
a circular effect, the slope at the inflection point and the unsigned and
signed shortest distance to the origin.
circ_coef(a1, a2, b1, b2)
intercept of the first linear component.
intercept of the second linear component.
slope of the first linear component.
slope of the second linear component.
A dataframe containing the coordinates of the inflection point of a circular effect, the slope at the inflection point and the unsigned and signed shortest distance to the origin.