crmPack (version 2.0.0)

IncrementsRelative-class: IncrementsRelative

Description

IncrementsRelative is the class for increments control based on relative differences in intervals.

Usage

IncrementsRelative(intervals, increments)
.DefaultIncrementsRelative()

Arguments

intervals

(numeric)
see slot definition.

increments

(numeric)
see slot definition.

Slots

intervals

(numeric)
a vector with the left bounds of the relevant intervals. For example, intervals = c(0, 50, 100) specifies three intervals: \((0, 50)\), \([50, 100)\) and \([100, +Inf)\). That means, the right bound of the intervals are exclusive to the interval and the last interval goes from the last value to infinity.

increments

(numeric)
a vector of the same length with the maximum allowable relative increments in the intervals.

Examples

# This is the example of a rule for:
# maximum doubling the dose if the current dose is <20
# or only maximum increasing the dose by 1.33 if the current dose is >=20.
my_increments <- IncrementsRelative(
  intervals = c(0, 20),
  increments = c(1, 0.33)
)