This is a function that reads a accident files for a vector of
dplyr::tbl_df with columns for the months and
given year of accidents in that year.
A vector of years for which to summarize accident months
This function returns a list of tbl_df object for each year that each contain the months and year of accidents for that year
Calling this function with for a year that doesn't have an accident file
results in an "invalid year" warning for that year. This function is
typically called by the
fars_summarize_years() function and not
run on its own. Hence not exported.
## Not run: fars_read_years(c(2013,2014))
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