pk.calc.count_conc: Count the number of concentration measurements in an interval

In PKNCA: Perform Pharmacokinetic Non-Compartmental Analysis

Count the number of concentration measurements in an interval

Description

count_conc and count_conc_measured are typically used for quality control on the data to ensure that there are a sufficient number of non-missing samples for a calculation and to ensure that data are consistent between individuals.

Usage

pk.calc.count_conc(conc, check = TRUE)

pk.calc.count_conc_measured(conc, check = TRUE)

Arguments

conc	Measured concentrations
check	Run assert_conc()?

Value

a count of the non-missing concentrations (0 if all concentrations are missing)

a count of the non-missing, measured (not below or above the limit of quantification) concentrations (0 if all concentrations are missing)

Functions

• pk.calc.count_conc_measured(): Count the number of concentration measurements that are not missing, above, or below the limit of quantification in an interval

See Also

Other NCA parameters for concentrations during the intervals: pk.calc.clast.obs(), pk.calc.cmax(), pk.calc.cstart(), pk.calc.ctrough()

PKNCA documentation built on June 8, 2025, 10:48 a.m.