#' @title Return variable lengths from the input schema.
#'
#' @description \code{getWidths} extracts the slot \code{df} of the input object and returns its
#' column \code{length} as a vector.
#'
#' @param object Object of class \linkS4class{StfwfSchema}.
#'
#' @return An integer vector.
#'
#' @examples
#' # A trivial example:
#' df <- data.frame(variable = c('Turnover', 'Employees'),
#' width = c(9L, 3L),
#' initialPos = c(1, 10),
#' finalPos = c(9, 12),
#' type = rep('num', 2),
#' valueRegEx = c('[0-9]{0,9}', '[0-9]{0,3}'),
#' description = c('Turnover of the business unit',
#' 'Number of employees of the business unit'),
#' stringsAsFactors = FALSE)
#' Schema <- new(Class = 'StfwfSchema', df = df)
#' getWidths(Schema)
#'
#'
#' @include getdf.R getVariables.R
#'
#' @export
setGeneric("getWidths", function(object){standardGeneric("getWidths")})
#' @rdname getWidths
#'
#' @export
setMethod(
f = "getWidths",
signature = c("StfwfSchema"),
function(object){
out <- getdf(object)[['width']]
names(out) <- getVariables(object)
return(out)
}
)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.