Horizontal Asymptote on the Right Side
DESCRIPTION:
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.
USAGE:
NLSstRtAsymptote(xy)
REQUIRED ARGUMENTS:
- xy
-
a
sortedXyData
object
VALUE:
A single numeric value estimating the horizontal asymptote for large
x
.
EXAMPLES:
DNase.2 <- DNase[ DNase$Run == "2", ]
DN.srt <- sortedXyData( expression(log(conc)), expression(density), DNase.2 )
NLSstRtAsymptote( DN.srt )