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mike880102

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library(nlstools)
rt<- read.table("D:\\example.txt",header=TRUE)
model <- Theta ~ Thetar + ((Thetas - Thetar)/(1 + alpha*h)^n)^(1-1/n)
preview(formula=model,data=rt,start=list(Thetar=0.1,Thetas=0.1,alpha=0.01£¬n=1.0))
nlsvan<-nls(model,rt,list(Thetar=0.1,Thetas=0.1,alpha=0.01£¬n=1.0))
plotfit(nlsvan,variable = 1,smooth=TRUE)
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  • ¸½¼þ 1 : example.txt
  • 2012-04-25 10:51:29, 126 bytes

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Robot (super robot)

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