visitview2

A data frame with the following columns:<dl>
<dt><code>usubjid</code></dt>
<dd>The unique subject ID.</dd><dt><code>visit</code></dt>
<dd>The drug dispensing visit, e.g., "Cycle 1 Day 1".</dd><dt><code>date</code></dt>
<dd>The date of the drug dispensing visit.</dd><dt><code>drug</code></dt>
<dd>The numeric code of the drug.</dd><dt><code>drug_name</code></dt>
<dd>The name of the drug.</dd><dt><code>kit</code></dt>
<dd>The numeric code of the kit type.</dd><dt><code>kit_name</code></dt>
<dd>The name of the kit type.</dd><dt><code>kit_number</code></dt>
<dd>The kit number for drug dispensing.</dd><dt><code>dispensed_quantity</code></dt>
<dd>The number of kits dispensed
at the visit.</dd>
</dl>

datasets

Performs drug demand forecasting by modeling drug dispensing data while taking into account predicted enrollment and treatment discontinuation dates. The gap time between randomization and the first drug dispensing visit is modeled using interval-censored exponential, Weibull, log-logistic, or log-normal distributions (Anderson-Bergman (2017) <doi:10.18637/jss.v081.i12>). The number of skipped visits is modeled using Poisson, zero-inflated Poisson, or negative binomial distributions (Zeileis, Kleiber & Jackman (2008) <doi:10.18637/jss.v027.i08>). The gap time between two consecutive drug dispensing visits given the number of skipped visits is modeled using linear regression based on least squares or least absolute deviations (Birkes & Dodge (1993, ISBN:0-471-56881-3)). The number of dispensed doses is modeled using linear or linear mixed-effects models (McCulloch & Searle (2001, ISBN:0-471-19364-X)).

Kaifeng Lu

drugDemand

Drug Demand Forecasting

visitview2 function

An object of class <code>tbl_df</code> (inherits from <code>tbl</code>, <code>data.frame</code>) with 5006 rows and 9 columns.

Format

A data frame with the following columns:<dl>
<dt><code>usubjid</code></dt>
<dd>The unique subject ID.</dd>

<dt><code>visit</code></dt>
<dd>The drug dispensing visit, e.g., "Cycle 1 Day 1".</dd>

<dt><code>date</code></dt>
<dd>The date of the drug dispensing visit.</dd>

<dt><code>drug</code></dt>
<dd>The numeric code of the drug.</dd>

<dt><code>drug_name</code></dt>
<dd>The name of the drug.</dd>

<dt><code>kit</code></dt>
<dd>The numeric code of the kit type.</dd>

<dt><code>kit_name</code></dt>
<dd>The name of the kit type.</dd>

<dt><code>kit_number</code></dt>
<dd>The kit number for drug dispensing.</dd>

<dt><code>dispensed_quantity</code></dt>
<dd>The number of kits dispensed
at the visit.</dd>


</dl>

visitview2: The observed subject drug dispensing data after enrollment completion.

Description

Usage

Arguments

Format