CatchAll: Species Richness Estimation with CatchAll

#' Frequencies of butterflies
#'
#' A dataset containing a frequency count table of butterflies in 
#' British Malaya in the 1940's
#'
#' @format A data frame with 25 rows and 2 variables:
#' \describe{
#'   \item{index}{An index variable j}
#'   \item{frequency}{The number of butterflies observed j times}
#'   ...
#' }
#' @source Fisher, R.A., Corbet A.S., & Williams, C.B.. 
#' "The relation between the number of species and 
#' the number of individuals in a random sample of an animal population." 
#' The Journal of Animal Ecology (1943): 42-58.
"butterfly"

#' The CatchAll output of butterfly
#'
#' The estimated species richness of butterflies
#'
#' @format A data frame with 248 rows rows and 20 variables:
#' 
#' @source Fisher, R.A., Corbet A.S., & Williams, C.B.. 
#' "The relation between the number of species and 
#' the number of individuals in a random sample of an animal population." 
#' The Journal of Animal Ecology (1943): 42-58.
#' @source Bunge, John, et al. "Estimating population diversity with 
#' CatchAll." Bioinformatics 28.7 (2012): 1045-1047.
"butterfly_catchall"