This is a function summarizes the number of accidents for every month of all selected years (using the
years argument) and returns tibble with the columns MONTH and for every year in
years a column with the number of accidents.
a numeric vector, representing the years for which the accident_data should be summarized. fars_summarize_years
This function is a wrapper for the fars_read_years function. The external functions
read_csv are included.
Therefore the dplyr , tidyr and readr package has to be installed and loaded.
This function returns a tibble which contains in the first collumn the month and in the following columns for every year in
years the number of accidents. for all the years specified in the
years argument. Every entry of the list is a data.frame with the columns year and MONTH.
If for an element of the
years argument no corresponding file is found a warning occurs.
## Not run: fars_summarize_years(2013) ## Not run: fars_summarize_years(c(2013,2014))
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.