Last chance! 50% off unlimited learning
Sale ends in
Returns the number of recruited subjects at given time vector.
getNumberOfSubjects(
time,
...,
accrualTime = c(0L, 12L),
accrualIntensity = 0.1,
accrualIntensityType = c("auto", "absolute", "relative"),
maxNumberOfSubjects = NA_real_
)Returns a NumberOfSubjects object.
The following generics (R generic functions) are available for this result object:
names to obtain the field names,
print to print the object,
summary to display a summary of the object,
plot to plot the object,
as.data.frame to coerce the object to a data.frame,
as.matrix to coerce the object to a matrix.
A numeric vector with time values.
Ensures that all arguments (starting from the "...") are to be named and that a warning will be displayed if unknown arguments are passed.
The assumed accrual time intervals for the study, default is
c(0, 12) (for details see getAccrualTime).
A vector of accrual intensities, default is the relative
intensity 0.1 (for details see getAccrualTime).
A character value specifying the accrual intensity input type.
Must be one of "auto", "absolute", or "relative"; default is "auto",
i.e., if all values are < 1 the type is "relative", otherwise it is "absolute".
If maxNumberOfSubjects > 0 is specified,
the end of accrual at specified accrualIntensity for the specified number of
subjects is determined or accrualIntensity is calculated at fixed end of accrual.
Click on the link of a generic in the list above to go directly to the help documentation of
the rpact specific implementation of the generic.
Note that you can use the R function methods to get all the methods of a generic and
to identify the object specific name of it, e.g.,
use methods("plot") to get all the methods for the plot generic.
There you can find, e.g., plot.AnalysisResults and
obtain the specific help documentation linked above by typing ?plot.AnalysisResults.
Calculate number of subjects over time range at given accrual time vector
and accrual intensity. Intensity can either be defined in absolute or
relative terms (for the latter, maxNumberOfSubjects needs to be defined)
The function is used by getSampleSizeSurvival.
AccrualTime for defining the accrual time.
getNumberOfSubjects(time = seq(10, 70, 10), accrualTime = c(0, 20, 60),
accrualIntensity = c(5, 20))
getNumberOfSubjects(time = seq(10, 70, 10), accrualTime = c(0, 20, 60),
accrualIntensity = c(0.1, 0.4), maxNumberOfSubjects = 900)
Run the code above in your browser using DataLab