saber: Saber data.

#' saber: Saber data
#'
#' The saber package provides Saber data. Saber are standardized education tests
#' run by the Colombian Institute for Educational Evaluation (ICFES). By now the
#' package includes data of the Saber 11 tests since 2005. The Saber 11 are
#' tests required by every high school student in Colombia to obtain the high
#' school diploma and are used by the ICFES and the government to assess the
#' quality of education and by universities for admissions to undergradute
#' programs. They are applied twice each year to accomodate to both school
#' calendars. There is a dataset for each test applied since 2005 containing
#' test results and socio-economic data for every student that took the test
#' during the given period. Echa dataset is named by the prefix SB11_ followed
#' by the year (YYYY) and period (1 or 2). See the usage or the example
#' below.
#'
#' Each period correspondes to a half of the year, so that the period 1 test
#' (i.e. first half of the year) is taken by high schools that finish their
#' academic year on the first half of the year (so-called B calendar) and the
#' period 2 test is taken by the schools that finish the academic year in the
#' second half of the year (A calendar). Most schools are A calendar, hence
#' period 1 data sets are considerably smaller than period 2 data sets.
#'
#' @docType package
#'
#' @usage data(SB11_20131)
#'
#' @format Each data set comes in the form of a data frame (with additional tbl
#' and tbl_df classes from dplyr). Each data frame has its own format.
#' Additional documentition will be available soon.
#'
#' @source \url{http://www.icfes.gov.co/investigacion/acceso-a-bases-de-datos}
#'
#' @name saber
#'
#' @examples
#' data(SB11_20051)
#' head(SB11_20051)
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