> x<-read.table("Qm.txt")
> y<-read.table("Wd.txt")
> z<-read.table("三口洪量.txt")
> w<-read.table("h.txt")
> nls.sol<-nls(w~2.718^(-((-log(z)/log(2.718))^a+((-log(x)/log(2.718))^b+(-log(y)/log(2.718))^b)^(a/b))^(1/a)),start = list( a=3, b=3))
错误于model.frame.default(formula = ~w + z + x + y) :
参数'w'的种类(list)不对
非线性参数估计得问题！急！！！
[s:12]