uncount

expand_counts

<code>uncount()</code> is provided by the tidyr package, and re-exported
by ggsurveillance. See <code><a href="https://tidyr.tidyverse.org/reference/uncount.html">tidyr::uncount()</a></code> for more details.
<code>uncount()</code> and its alias <code>expand_counts()</code> are complements of <code><a href="https://dplyr.tidyverse.org/reference/count.html">dplyr::count()</a></code>: they take
a data frame with a column of frequencies and duplicate each row according to
those frequencies.

Create epicurves or epigantt charts in 'ggplot2'. Prepare
data for visualisation or other reporting for infectious disease
surveillance and outbreak investigation. Includes tidy functions to solve
date based transformations for common reporting tasks, like
(A) seasonal date alignment for respiratory disease surveillance,
(B) date-based case binning based on specified time intervals like
isoweek, epiweek, month and more, (C) automated detection and marking
of the new year based on the date/datetime axis of the 'ggplot2'.
An introduction on how to use epicurves can be found on the US CDC website
(2012, <https://www.cdc.gov/training/quicklearns/epimode/index.html>).

Alexander Bartel

ggsurveillance

Tools for Outbreak Investigation/Infectious Disease Surveillance

uncount function

<dl><dt>data</dt>
<dd>A data frame, tibble, or grouped tibble.</dd>
<dt>weights</dt>
<dd>A vector of weights. Evaluated in the context of <code>data</code>;
supports quasiquotation.</dd>
<dt>...</dt>
<dd>Additional arguments passed on to methods.</dd>
<dt>.remove</dt>
<dd>If <code>TRUE</code>, and <code>weights</code> is the name of a column in <code>data</code>,
then this column is removed.</dd>
<dt>.id</dt>
<dd>Supply a string to create a new variable which gives a unique
identifier for each created row.</dd></dl>

Arguments

<code>uncount()</code> is provided by the tidyr package, and re-exported
by ggsurveillance. See <code><a href='https://tidyr.tidyverse.org/reference/uncount.html'>tidyr::uncount()</a></code> for more details.
<code>uncount()</code> and its alias <code>expand_counts()</code> are complements of <code><a href='https://dplyr.tidyverse.org/reference/count.html'>dplyr::count()</a></code>: they take
a data frame with a column of frequencies and duplicate each row according to
those frequencies.

Duplicate rows according to a weighting variable — uncount

<dl>

<dt>data</dt>
<dd>A data frame, tibble, or grouped tibble.</dd>


<dt>weights</dt>
<dd>A vector of weights. Evaluated in the context of <code>data</code>;
supports quasiquotation.</dd>


<dt>...</dt>
<dd>Additional arguments passed on to methods.</dd>


<dt>.remove</dt>
<dd>If <code>TRUE</code>, and <code>weights</code> is the name of a column in <code>data</code>,
then this column is removed.</dd>


<dt>.id</dt>
<dd>Supply a string to create a new variable which gives a unique
identifier for each created row.</dd>

</dl>

uncount: Duplicate rows according to a weighting variable

Description

Usage

Value

Arguments

Examples