get_example_design {adestr} | R Documentation |
The design was optimized to minimize the expected sample size under the alternative hypothesis for a one-armed trial. The boundaries are chosen to control the type I error at 0.025 for a normally distributed test statistic (i.e. known variance). For an alternative hypothesis of mu=0.4, the overall power is 80%.
get_example_design(two_armed = FALSE, label = NULL)
two_armed |
(logical) determins whether the design is for one- or two-armed trials. |
label |
(optional) label to be assigned to the design. |
an exemplary design of class TwoStageDesign
. This object
contains information about the sample size recalculation rule n2
, the
futility and efficacy boundaries c1f
and c1e
and the
second-stage rejection boundary c2
.
get_example_design()