Calculate the gradient of the proportion mediated for yreg linear.

Calculate the gradient of the proportion mediated for yreg linear case.

grad_prop_med_yreg_linear(pnde, tnie)

Arguments

pnde

A numeric vector of length one. Pure natural direct effect.

tnie

A numeric vector of length one. Total natural indirect effect.

Value

A numeric vector of length two. Gradient of the proportion mediated with respect to pnde and tnie.