NLSstRtAsymptote {stats} | R Documentation |
Provide an initial guess at the horizontal asymptote on the right side
(i.e., 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.
NLSstRtAsymptote(xy)
xy |
a sortedXyData object |
A single numeric value estimating the horizontal asymptote for large
x
.
Jose Pinheiro and Douglas Bates
sortedXyData
,
NLSstClosestX
,
NLSstRtAsymptote
,
selfStart
DNase.2 <- DNase[ DNase$Run == "2", ] DN.srt <- sortedXyData( expression(log(conc)), expression(density), DNase.2 ) NLSstRtAsymptote( DN.srt )