# hougen

Hougen-Watson model

## Syntax

yhat = hougen(beta,x)

## Description

yhat = hougen(beta,x) returns the predicted values of the reaction rate, yhat, as a function of the vector of parameters, beta, and the matrix of data, X. beta must have 5 elements and X must have three columns.

hougen is a utility function for rsmdemo.

The model form is:

$\stackrel{^}{y}=\frac{{\beta }_{1}{x}_{2}-{x}_{3}/{\beta }_{5}}{1+{\beta }_{2}{x}_{1}+{\beta }_{3}{x}_{2}+{\beta }_{4}{x}_{3}}$

## References

[1] Bates, D. M., and D. G. Watts. Nonlinear Regression Analysis and Its Applications. Hoboken, NJ: John Wiley & Sons, Inc., 1988.