RecruitmentRatio-class: 'RecruitmentRatio'

In crmPack: Object-Oriented Implementation of Dose Escalation Designs

RecruitmentRatio

Description

RecruitmentRatio constrains the recruitment of backfill patients based on a ratio to the main trial cohort size. The maximum number of backfill patients is calculated as ceiling(ratio * active_cohort_size).

Usage

RecruitmentRatio(ratio = 1)

.DefaultRecruitmentRatio()

Arguments

ratio

(number) see slot definition.

Slots

ratio

(number) the recruitment ratio, specifying the maximum number of backfill patients per patient in the main trial cohort (non-negative).

Note

Typically, end users will not use the .DefaultRecruitmentRatio() function.

See Also

Recruitment and the other subclasses listed in there.

Examples

# Create a RecruitmentRatio object with ratio 0.5
# This means 1 backfill patient for every 2 patients in the active cohort
recruitment <- RecruitmentRatio(ratio = 0.5)
print(recruitment)

# Create a variant with ratio 1 (1:1)
recruitment_one_to_one <- RecruitmentRatio(ratio = 1)
print(recruitment_one_to_one)

crmPack documentation built on July 5, 2026, 9:06 a.m.