season

This function determines the season (Winter, Spring, Summer, or Fall) based
on an input date.

Hospitals, hospital systems, and even trauma systems that provide care to injured patients
may not be aware of robust metrics that can help gauge the efficacy of their programs in saving the lives
of injured patients. 'traumar' provides robust functions driven by the academic literature to
automate the calculation of relevant metrics to individuals desiring to measure the performance of their
trauma center or even a trauma system. 'traumar' also provides some helper functions for the data analysis
journey. Users can refer to the following publications for descriptions of the methods used in 'traumar'.
TRISS methodology, including probability of survival, and the W, M, and Z Scores - Flora (1978)
<doi:10.1097/00005373-197810000-00003>, Boyd et al. (1987, PMID:3106646), Llullaku et al. (2009)
<doi:10.1186/1749-7922-4-2>, Singh et al. (2011) <doi:10.4103/0974-2700.86626>, Baker et al. (1974, PMID:4814394),
and Champion et al. (1989) <doi:10.1097/00005373-198905000-00017>. For the Relative Mortality Metric,
see Napoli et al. (2017) <doi:10.1080/24725579.2017.1325948>, Schroeder et al. (2019)
<doi:10.1080/10903127.2018.1489021>, and Kassar et al. (2016) <doi:10.1177/00031348221093563>.

Nicolas Foss

traumar

Calculate Metrics for Trauma System Performance

Iowa Department of Health and Human Services 

season function

<dl><dt>input_date</dt>
<dd>A Date or POSIXct object representing the date to determine
the season for. The input must be of class <code>Date</code> or <code>POSIXct</code>.</dd></dl>

Arguments

Author

Get Season Based on a Date — season

<dl>

<dt>input_date</dt>
<dd>A Date or POSIXct object representing the date to determine
the season for. The input must be of class <code>Date</code> or <code>POSIXct</code>.</dd>

</dl>

season: Get Season Based on a Date

Description

Usage

Value

Arguments

Author

Details

Examples