trialWeek: Scheduling interim analyses in clinical trials
In interim: Scheduling Interim Analyses in Clinical Trials

Description Usage Arguments Details Value See Also Examples

Function trialWeek determines the week of the trial in which a certain number p of patients finished treatment.

1	trialWeek(t, p)

`t`	result of function `treatment`.
`p`	number of patients for which the week shall be determined.

trialWeek is an auxilliary function required to assess the timing of interim analyses. It derives the week of trial in which a certain number of patients finished treatment.

The output is required for function cross, which includes the information into an existing Patients diagram.

The week in which the number of patients is reached.

cross for plotting results of function trialWeek into an existing Patients diagram.

x=recruitment(nc=Inf,ns=Inf,cw=4,sw=2,sf=0.3,tb=4,en=400)
y=treatment(r=x,du=26,dr=convertedRate(0.3,52,26))
z=treatment(r=x,du=52,dr=0.3)
trialCourse(r=x,t1=y,t2=z)
trialWeek(t=y,p=100)