Fits the asymptotic regression model, in the form
b1*(1-exp(-exp(lrc) * x) to the
This can be used as a building block in determining starting estimates
for more complicated models.
A numeric value of length 3 with components labelled
b0 is the estimated intercept on
b1 is the estimated difference between the
asymptote and the
lrc is the estimated
logarithm of the rate constant.
José Pinheiro and Douglas Bates
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