[R] nls()

J.M. Breiwick jeff.breiwick at noaa.gov
Wed Sep 14 19:19:13 CEST 2005


I am using nls() with the form: nls(~my.fcn(...)) because I have to 
iteratively compute the expected y values. The function my.fcn() returns 

However, I want to fix some of the parameters in my.fcn at various values 
and compute the parameter estimates. In Splus there is such a thing as a 
parameterized dataframe. I don't think this exists in R so does anyone know 
how to set one or more of the parameters as constants in the model? Thank 

Jeff Breiwick

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