28.1.10 BiHill

Function

y=\frac{P_{m}}{[1+(\frac{K_{a}}{x})^{H_{a}}][1+(\frac{x}{K_{i}})^{H_{i}}]}

Brief Description

Biphasic Hill Equation.

Sample Curve

BiHill.png

Parameters

Number: 5

Names: Pm, Ka, Ki, Ha, Hi

Meanings: Pm = maximum, Ka = half-maximal activating, Ki = half-maximal inhibitory, Ha = activation Hill coefficient, Hi = inhibitory Hill coefficient

Lower Bounds: Pm > 0, Ka > 0, Ki > 0, Ha > 0, Hi > 0

Upper Bounds: none

Derived Parameters

Script Access

nlf_BiHill(x,Pm,Ka,Ki,Ha,Hi)

Function File

fitfunc\BiHill.fdf

Category

Growth/Sigmoidal