fars_summarize_years: This functions creates a data frame containing number of...

In lorenzo-arturo/farspackage: Package readFARS was designed to make it easy for R users to summarize and visualize the Fatality Analysis Reporting System or FARS data from the National Highway Traffic Safety Administration NHTSA.

Description

This functions creates a data frame containing number of records available per month

Usage

fars_summarize_years(years)

Arguments

years

A numerical vector indicating which years to include in the output dataframe.

Value

A data frame with the variables MONTH and each year where data is avaiable, summarizing the number of observations recorded each month per year.

Note

If file does not exist for corresponding year a warning will be generated.

See Also

make_filename

fars_read_years

Examples

## Not run: 
fars_summarize_years(2013)
fars_summarize_years(2013L)
fars_summarize_years('2013')
fars_summarize_years(c(2013, 2014))
fars_summarize_years(list(2013, 2015))

## End(Not run)

lorenzo-arturo/farspackage documentation built on June 13, 2020, 12:24 a.m.