Read the examples section of
?nls
You probably need to provide a start list of values.
There are some points you should note from the Posting Guide mentioned in the
footer of emails on this list: this is not a homework help forum, you should
provide a reproducible example, and you should not post in HTML format.
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"水静流深" <1248283...@qq.com> wrote:
>input <- "
> t y
> 1 5.3
> 2 7.2
> 3 9.6
> 4 12.9
> 5 17.1
> 6 23.2"
> dat<-read.table(textConnection(input),header=TRUE,sep="")
> t<-dat[,1]
> y<-dat[,2]
>
>`y=3.975*(1.341^t)` is the resule of fit,how can i use `nls` function
>to get it?
> [[alternative HTML version deleted]]
>
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>PLEASE do read the posting guide
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>and provide commented, minimal, self-contained, reproducible code.
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