Perform the half-life fit given the data. The function simply fits the data without any validation. No selection of points or any other components are done.

Perform the half-life fit given the data. The function simply fits the data without any validation. No selection of points or any other components are done.

Usage

fit_half_life(data, tlast)

Arguments

data

The data to fit. Must have two columns named "log_conc" and "time"

tlast

The time of last observed concentration above the limit of quantification.

Value

A named list with one value each for "r.squared", "adj.r.squared", "lambda.z.corrxy", "lambda.z", "clast.pred", "lambda.z.time.first", "lambda.z.time.last", "lambda.z.n.points", "half.life", and "span.ratio". pk.calc.half.life() fits one candidate per span of terminal points and builds a data.frame from the candidate it selects.

See also

pk.calc.half.life()