NLSstAsymptotic
Fit the Asymptotic Regression Model

Description

Fits the asymptotic regression model, in the form b0 + b1*(1-exp(-exp(lrc) * x)), to the xy data.

Usage

NLSstAsymptotic(xy)

Arguments

xy a sortedXyData object.
Value
returns a length-3 numeric value with the following components.
b0 represents the estimated intercept on the y-axis.
b1 represents the estimated difference between the asymptote and the y-intercept.
lrc represents the estimated logarithm of the rate constant.
See Also
SSasymp
Examples
xy <- sortedXyData(expression(age), expression(height), Sdatasets::Loblolly)
NLSstAsymptotic(xy)
#        b0         b1        lrc 
# -8.533061 110.795138  -3.246130 
Package stats version 6.1.4-13
Package Index