Returns the first derivative of the beta Lorenz- Vectorized

derive_lb() returns the first derivative of a beta Lorenz curve.

Usage

derive_lb(x, A, B, C)

Arguments

x

numeric: Point on curve. Allow for vectors.

A

numeric: Lorenz curve coefficient. Output of regres()$coef[1].

B

numeric: Lorenz curve coefficient. Output of regres()$coef[2].

C

numeric: Lorenz curve coefficient. Output of regres()$coef[3].

Value

numeric