R/data.R

#' Database from NGA-West2 Flatfile
#'
#' A dataset containing 21540 recordings from NGA-West2 Flatfile, which is a reference for metadata.
#' It helps to link stations and earthquakes, obtain usable frequencies and real azimuth degree of
#' the sensor.
#'
#' @format A data frame with 21540 rows and 12 variables
#' \describe{
#'   \item{Record.Sequence.Number}{record sequence number, identifies a specfic recording}
#'   \item{EQID}{earthquake ID, identifies a specific earthquake event}
#'   \item{LP.H1..Hz.}{low pass corner frequency of the frist horizontal component of ground motions}
#'   \item{LP.H2..Hz.}{low pass corner frequency of the second horizontal component of ground motions}
#'   \item{Factor}{the ratio for usbale frequency from corner frequency}
#'   \item{Lowest.Usable.Freq...H1..Hz.}{lowest usable frequency of the frist horizontal component of ground motions}
#'   \item{Lowest.Usable.Freq...H2..H2.}{lowest usable frequency of the second horizontal component of ground motions}
#'   \item{Lowest.Usable.Freq...Ave..Component..Hz.}{the average of lowest usable frequency of two horizontal components}
#'   \item{File.Name..Horizontal.1.}{the file name for the first horziontal component of ground motion in NGA-West2 database}
#'   \item{File.Name..Horizontal.2.}{the file name for the second horziontal component of ground motion in NGA-West2 database}
#'   \item{H1.azimth..degrees.}{the azimuth degree of the first horizontal component of ground motion}
#'   \item{H2.azimth..degrees.}{the azimuth degree of the second horizontal component of ground motion}
#' }
#'
#' @source \url{http://peer.berkeley.edu/ngawest2/databases/}

"NGAW2"
wltcwpf/RCTC documentation built on March 5, 2023, 11:01 p.m.