NLSstRtAsymptote
Horizontal Asymptote on the Right Side
Description
Provides an initial guess at the horizontal asymptote on the right side
(that is, the large values of x) of the graph of y versus
x from the xy object. Primarily used within
initial functions for self-starting nonlinear regression
models.
Usage
# Generic function
NLSstRtAsymptote(xy)
## S3 method for class 'sortedXyData':
NLSstRtAsymptote(xy)
Arguments
| xy |
a sortedXyData object.
|
Value
returns a single numeric value estimating the horizontal asymptote for large
x.
Note
NLSstRtAsymptote() is generic and has only one non-visible method for class "sortedXyData".
See Also
sortedXyData
Examples
DNase.2 <- Sdatasets::DNase[ Sdatasets::DNase$Run == "2", ]
DN.srt <- sortedXyData( expression(log(conc)), expression(density), DNase.2 )
NLSstRtAsymptote( DN.srt )