set_recruitment: generate recruitment table
In Knusprikus/BSSRed: Blinded Sample Size Reestimation For Event Driven Trials

Description Usage Arguments Value Examples

A function to build a recruitment dataframe by some general conditions e.g. targeted total number of recruitments per group and recruitment timePoints.

1	set_recruitment(targetN, timePoints, fn = "linear", ...)

`targetN`	a vector of length 1 or two defining the targeted total number of recruitments. If `targetN` is of length tow the total number recruitments per group is defined. The first entry refers to the treatment group.
`timePoints`	a vector defining the timepoint of each recruitment or a positive number defining the amount of recruitments (needs `time` to be set).
`fn`	a string defining the shape of the cummulative recruitment. Default is set to "linear".
`k`	a positive number defining the k:1 treatment allocation (treatment:control). Optional, if `targetN` is vector of length two.
`timeLimits`	a vector of length two defining the timepoint of the first and the last recruitment. Optional if `timePoints` is a vector defining each timepoint of recruitment.

a data.frame containing the number of recruitments of the treament and control group "T" and "C" per timepoint time.

# Two different approches to define a recruitment of 1071 patients
# with an allokation of 2:1 (treatment:control), where 24 batches of
# recruits are wanted. The recruitment is assumed to take place at the
# beginning of each month over 24 month.

set_recruitment(targetN=c(714,357), timePoints=0:23)
set_recruitment(targetN=1071, k=2, timePoints=24, timeLimits=c(0,23))