Check out ?nls for a description and examples. On Tue, Nov 11, 2008 at 10:33 PM, Leon_Long <[EMAIL PROTECTED]> wrote: > > I am a bigginer of R language.I need to prepare a PPT which deadline is 15 > Nov. 2008. I want to build a regress model with my own formula. The formula > is y=100/(1+exp(a+b*X)). I have no idea of the R program,please demonstrate > how to do it or give a good sample. > Anyone would help me? Thank you very much!
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