calc_addl: calc_addl is a vectorized function which provides the number...

In qPharmetra/PMDatR: Pharmacometric Data Management in R

calc_addl is a vectorized function which provides the number of additional doses given an time range and interdose interval

Description

calc_addl is a vectorized function which provides the number of additional doses given an time range and interdose interval

Usage

calc_addl(.dtime, .ii, .f = round, .tol = 0.5)

Arguments

.dtime	time difference
.ii	interdose interval
.f	callback on now to handle non-nominal intervals, defaults to round

Details

To handle non-nomincal times is through the function used to figure out the number of addl's needed. The default is to floor the time/ii, so given an interval of 30 hours and an II of 12, 2.5 doses would be needed to cover the interval –> flooring would provide 2 doses, therefore addl of 1 would be returned. However, this behavior could be changed to use ceiling to be inclusive, as a ceiling(2.5) –> 3 doses, therefore addl of 2 would be returned.

Even more customized functions could be used, however be sure they are vectorized.

qPharmetra/PMDatR documentation built on April 7, 2024, 5:42 p.m.