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51 lines
1.9 KiB
51 lines
1.9 KiB
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/get_flu_data.r
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\name{get_flu_data}
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\alias{get_flu_data}
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\title{Retrieves state, regional or national influenza statistics from the CDC}
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\usage{
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get_flu_data(region = "hhs", sub_region = 1:10, data_source = "ilinet",
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years = as.numeric(format(Sys.Date(), "\%Y")))
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}
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\arguments{
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\item{region}{one of "\code{hhs}", "\code{census}", "\code{national}"}
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\item{sub_region}{depends on the \code{region_type}.\cr
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For "\code{national}", the \code{sub_region} should be \code{NA}.\cr
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For "\code{hhs}", should be a vector between \code{1:10}.\cr
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For "\code{census}", should be a vector between \code{1:9}}
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\item{data_source}{either of "\code{who}" (for WHO NREVSS) or "\code{ilinet}"
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or "\code{all}" (for both)}
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\item{years}{a vector of years to retrieve data for (i.e. \code{2014} for CDC
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flu season 2014-2015). Default value is the current year and all
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\code{years} values should be > \code{1997}}
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}
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\value{
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If only a single \code{data_source} is specified, then a single
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\code{data.frame} is returned, otherwise a named list with each
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\code{data.frame} is returned.
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}
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\description{
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Uses the data source from the
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\href{https://gis.cdc.gov/grasp/fluview/fluportaldashboard.html}{CDC FluView}
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and provides flu reporting data as either a single data frame or a list of
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data frames (depending on whether either \code{WHO NREVSS} or \code{ILINet}
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(or both) is chosen.
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}
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\details{
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A lookup table between HHS regions and their member states/territories
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is provided in \code{\link{hhs_regions}}.
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}
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\note{
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There is often a noticeable delay when making the API request to the CDC.
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This is not due to a large download size, but the time it takes for their
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servers to crunch the data. Wrap the function call in \code{httr::with_verbose}
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if you would like to see what's going on.
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}
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\examples{
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\dontrun{
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flu <- get_flu_data("hhs", 1:10, c("who", "ilinet"), years=2000:2014)
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}
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}
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