sigex: Ecce Signum: Multivariate Signal Extraction

#' Business Formation Statistics Weekly Data
#'
#' BFS measure business initiation activity and the cycle from initiation
#' to realized business formation. BFS gives an early look at business
#' formation activity within the U.S..
#'
#' @format ## `bfs`
#' A data frame with 757 rows and 10 columns:
#' \describe{
#'   \item{Year}{Four digit year}
#'   \item{Week}{Week of the year based on IRS processing. Please
#'               see below for how weeks match to calendar
#'               dates. Please note that some years (2008, 2014,
#'               and 2020) have 53 weeks.}
#'  \item{BA_NSA}{Not seasonally adjusted Business Application national series}
#'  \item{HBA_BSA}{Not seasonally adjusted High-Propensity Business
#' Application national series}
#'  \item{WBA_NSA}{Not seasonally adjusted Businesses Applications
#' with Planned Wages national series}
#'  \item{CBA_NSA}{Not seasonally adjusted Business Applications
#' from Corporations national series}
#'  \item{YY_BA_NSA}{Calculated year-to-year percentage changes for
#' same week a year ago for the Business
#' Application series. No values are available for first
#' year of the series (2006) or for week 53s.}
#'  \item{YY_HBA_NSA}{Calculated year-to-year percentage changes for
#' same week a year ago for the High-Propensity
#' Business Application series. No values are
#' available for first year of the series (2006) or for
#' week 53s.}
#'  \item{YY_WBA_NSA}{Calculated year-to-year percentage changes for
#' same week a year ago for the Businesses
#' Applications with Planned Wages series. No
#' values are available for first year of the series
#' (2006) or for week 53s.}
#'  \item{YY_CBA_NSA}{Calculated year-to-year percentage changes for
#' same week a year ago for the Business
#' Applications from Corporations series. No values
#' are available for first year of the series (2006) or
#' for week 53s.}
#' }
#' @source <https://www.census.gov/data/experimental-data-products/weekly-business-formation-statistics.html>
"bfs"