findCutoffFirstDerivative {KneeArrower}

Finds the point where the derivative is a fraction of the steepest slope

Description

Finds the point where the derivative is a fraction of the steepest slope

Usage

findCutoffFirstDerivative(x, y, slope_ratio = 0.5)

Arguments

x

x coordinates of points around the curve

y

y coordinates of points around the curve

slope_ratio

the fraction of the steepest slope that defines knee point

Value

(x, y) coordinates of the knee point