Interpolate or extrapolate concentrations using the provided method
interpolate_conc_linear(conc_1, conc_2, time_1, time_2, time_out)interpolate_conc_log(conc_1, conc_2, time_1, time_2, time_out)
extrapolate_conc_lambdaz(clast, lambda.z, tlast, time_out)
The interpolated or extrapolated value using the correct method
The concentration at time1 and time2
The time value associated with conc1 and conc2
Time when interpolation is requested
The concentration at the last time above the lower LOQ
The elimination rate (in units of inverse time) for extrapolation
The time of the last concentration above the lower limit of quantification (LOQ)