get_crss_zip: Download CRSS data files as zipped CSV or SAS files

In elipousson/crashapi: CrashAPI

Download CRSS data files as zipped CSV or SAS files

Description

This function is similar to get_fars_zip() to download files directly from NHTSA FTP site. If read is TRUE, the function reads a list containing data frames for each table available in the selected year. If geometry is TRUE, the accident table is converted to an sf object.

Usage

get_crss_zip(
  year = 2022,
  format = "csv",
  path = NULL,
  aux = FALSE,
  read = TRUE,
  geometry = FALSE,
  overwrite = FALSE
)

Arguments

year	Year of data from 2016 to 2022, Default: 2022
format	Format of zipped data tables ('csv' or 'sas'). Default: 'csv'. unzip and geo options are only supported if format is "csv".
path	Path to download zip file. Set to getwd() if NULL (default).
aux	If TRUE, download auxiliary CRSS datasets .
read	If TRUE, unzip the downloaded file and read CSV files into a list of tables with each list item corresponding to one CSV file.
geometry	If TRUE, convert the accident table to a sf object.
overwrite	If FALSE, abort if file exists at the provided path. If TRUE, overwrite file.

Value

Downloads zip file with CSV or SAS tables and returns the zip file path invisibly or returns a list of data frames (if geo is FALSE), or returns a list of data frames with the accident table converted to a sf object.

elipousson/crashapi documentation built on Sept. 6, 2024, 9:01 a.m.