stats (version 3.4.3)

NLSstRtAsymptote: 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)

Arguments

xy

a sortedXyData object

Value

A single numeric value estimating the horizontal asymptote for large x.

See Also

sortedXyData, NLSstClosestX, NLSstRtAsymptote, selfStart

Examples

# NOT RUN {
DNase.2 <- DNase[ DNase$Run == "2", ]
DN.srt <- sortedXyData( expression(log(conc)), expression(density), DNase.2 )
NLSstRtAsymptote( DN.srt )
# }