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wired
2011 Aug 31
3
Fitting my data to a Weibull model
Hi guys,
I have a data-set that fits well into a Weibull model y = a-b*exp(-c*x^d).
I want to estimate the parameters of the coefficients a, b, c and d, given x
and y.
Can you guys help me?
Just as an example, I fit the data
y <- c(1,2,3,4,10,20)
and
x <- c(1,7,14,25,29,30)
According to this model above, and using the software CurveExpert, and I got
the estimates of a (2.95),b (2.90),c