Hi all,

I am not a mathematician and I am trying to fit a function which could fit my observed data.
Which function should I use and how could I fit it to data in R?
Below are the data:
x <- c(0, 9, 17, 24, 28, 30)
y <- c(500, 480, 420, 300, 160, 5)

I use R for Mac OS, version 2.10-1 2009-08-24
Thank you for your help.

Vincent.


      
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