NLSstClosestX

From stats v3.2.2 by R-core R-core@R-project.org

Use inverse linear interpolation to approximate the x value at which the function represented by xy is equal to yval.

NLSstClosestX(xy, yval)

A single numeric value on the x scale.

library(stats)

DNase.2 <- DNase[ DNase$Run == "2", ]
DN.srt <- sortedXyData(expression(log(conc)), expression(density), DNase.2)
NLSstClosestX(DN.srt, 1.0)

Documentation reproduced from package stats, version 3.2.2, License: Part of R 3.2.2

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