weibullDropout

Fit scale and shape parameters of the Weibull distribution to match
dropout rates at two specified time points. Weibull distribution can be
used as a dropout distribution because it has two parameters.
Note that It is users' responsibility to assure that the units of dropout
time, readout of non-tte endpoints, and trial duration are consistent.

Simulate phase II and/or phase III clinical trials. It supports various types of endpoints and adaptive strategies. Tools for carrying out graphical testing procedure and combination test under group sequential design are also provided.

Han Zhang

TrialSimulator

Clinical Trial Simulator

weibullDropout function

<dl><dt>time</dt>
<dd>a numeric vector of two time points at which dropout rates are
specified.</dd>
<dt>dropout_rate</dt>
<dd>a numeric vector of dropout rates at <code>time</code>.</dd></dl>

Arguments

Calculate Parameters of Weibull Distribution as a Dropout Method — weibullDropout

<dl>

<dt>time</dt>
<dd>a numeric vector of two time points at which dropout rates are
specified.</dd>


<dt>dropout_rate</dt>
<dd>a numeric vector of dropout rates at <code>time</code>.</dd>

</dl>

weibullDropout: Calculate Parameters of Weibull Distribution as a Dropout Method

Description

Usage

Value

Arguments

Examples