Accrual Time

Description

Class for the definition of accrual time and accrual intensity.

Details

AccrualTime is a class for the definition of accrual time and accrual intensity.

Fields

endOfAccrualIsUserDefined

If TRUE, the end of accrual has to be defined by the user (i.e., the length of accrualTime is equal to the length of accrualIntensity -1). Is a logical vector of length 1.

followUpTimeMustBeUserDefined

Specifies whether follow up time needs to be defined or not. Is a logical vector of length 1.

maxNumberOfSubjectsIsUserDefined

If TRUE, the maximum number of subjects has been specified by the user, if FALSE, it was calculated.

maxNumberOfSubjectsCanBeCalculatedDirectly

If TRUE, the maximum number of subjects can directly be calculated. Is a logical vector of length 1.

absoluteAccrualIntensityEnabled

If TRUE, absolute accrual intensity is enabled. Is a logical vector of length 1.

accrualTime

The assumed accrual time intervals for the study. Is a numeric vector.

accrualIntensity

The absolute accrual intensities. Is a numeric vector of length kMax.

accrualIntensityRelative

The relative accrual intensities.

maxNumberOfSubjects

The maximum number of subjects for power calculations. Is a numeric vector.

remainingTime

In survival designs, the remaining time for observation. Is a numeric vector of length 1.

piecewiseAccrualEnabled

Indicates whether piecewise accrual is selected. Is a logical vector of length 1.