.\" -*- nroff -*- generated from .Rd format
.BG
.FN NLSstLfAsymptote
.TL
Horizontal Asymptote on the Left Side
.DN
Provide an initial guess at the horizontal asymptote on the left side
(i.e. small 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. 
.CS
NLSstLfAsymptote(xy)
.RA
.AG xy
a `sortedXyData' object
.RT 
A single numeric value estimating the horizontal asymptote for small
`x'.
.EX
DNase.2 <- DNase[ DNase$Run == "2", ]
DN.srt <- sortedXyData( expression(log(conc)), expression(density), DNase.2 )
NLSstLfAsymptote( DN.srt )
.KW data,manip
.WR
