Hi,
please help me coding:
model : y = f(x) + e, e ~ N(0, sigma^2)
f(x) = 1/1+x^2
generate {(x_i,y_i), i=1,2,...,n}
x_i: are ordered
H(x_j) = sum_i =1, i neq j-1 y_i+1/x_i+1 - x_j (x_i+1 - x_i )
j = 1, ...,n
find {(x_i, H(x_i)), i = 1, ..., n}
Then find (x_i, H(H(x_i)), i = 1, ..., n}
I do appreciate your help
thank you in advance
fatemah
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