expCurve {bdots}

Exponential curve function

Description

Exponential function used in fitting nlme curve for observations

Usage

expCurve(dat, y, time, params = NULL, ...)

Arguments

dat

subject data to be used

y

outcome variable

time

time variable

params

NULL unless user wants to specify starting parameters for gnls

...

just in case

Details

Remove any values of zero, or jitter, before using with bdotsFit

y ~ x_0 exp(k beta)