Using lm to estimate a parameter?
On 19.02.2013 11:23, hellen wrote:
Hi, I have a data with three variables (X,Y,Z) and I have an equation as Z=X/(1+L*X/Y) where L is a constant which need to be estimated from data. How should I write the formula in lm or is it possible to fit a linear model in this case?
Neither, it is nonlinear in the parameters. See ?nls or ?optim, for example. Uwe Ligges
Thanks! Hallen [[alternative HTML version deleted]]
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