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linearrelationships
2008 May 27
0
How to test significant differences for non-linearrelationships for two locations
Thanks for the reply!
I thought of dummy variable. But I have no idea how to put the dummy into the model.
Say I have a Y~ X relationship in logistic form as:
nls(Y~a/(1+b*exp(-c*X),start=c(a=1,b=1,c=1) assume I am using nls to solve the question.
where could I put the dummy variable? Thanks!
Jenny
> is it possible for you to include the site as a dummy 0-1 and then
>use just one