Download Data from the CDC — dcf_download_cdc • dcf

Download data and metadata from the Centers for Disease Control and Prevention (CDC).

Usage

dcf_download_cdc(
  id,
  out_dir = "raw",
  state = NULL,
  parquet = FALSE,
  verbose = TRUE
)

Arguments

id: ID of the resource (e.g., ijqb-a7ye).
out_dir: Directory in which to save the metadata and data files.
state: The state ID of a previous download; if provided, will only download if the new state does not match.
parquet: Logical; if TRUE, will convert the downloaded CSV file to Parquet.
verbose: Logical; if FALSE, will not display status messages.

Value

The state ID of the downloaded files; downloads files (<id>.json and <id>.csv.xz) to out_dir

`data.cdc.gov` URLs

For each resource ID, there are 3 relevant CDC URLs:

resource/<id>: This redirects to the resource's main page, with displayed metadata and a data preview (e.g., data.cdc.gov/resource/ijqb-a7ye).
api/views/<id>: This is a direct link to the underlying JSON metadata (e.g., data.cdc.gov/api/views/ijqb-a7ye).
api/views/<id>/rows.csv: This is a direct link to the full CSV dataset (e.g., data.cdc.gov/api/views/ijqb-a7ye/rows.csv).

Examples

if (FALSE) { # \dontrun{
  dcf_download_cdc("ijqb-a7ye")
} # }