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#' Summary function for supELtest object
#'
#' @description Returns a list containing the maximally selected EL statistics, the critical value based on bootstrap,
#' and the p-value of the test.
#' @name summary.supELtest
#' @param object the result of a call to the \code{supELtest} function
#' @param digits significant digits to print, the default value is \code{max(3L, getOption("digits") - 3L)}
#' @param quiet a logical indicating whether to reduce the amount of output or not, the default value is \code{FALSE}
#' @param ... for future method
#' @return \code{summary.supELtest} returns a list with following components:
#' \itemize{
#' \item \code{call} the statement used to create the \code{supELtest} object
#' \item \code{teststat} the resulting integrated EL statistics
#' \item \code{critval} the critical value based on bootstrap
#' \item \code{pvalue} the p-value of the test
#' \item \code{sided} the value of the input argument of supELtest
#' \item \code{alpha} the value of the input argument of supELtest
#' }
#' @seealso \code{\link{hepatitis}}, \code{\link{supELtest}}, \code{\link{print.supELtest}}
#' @examples
#' library(survELtest)
#' nocrossings(survival::Surv(hepatitis$time, hepatitis$censor)~
#' hepatitis$group, sided = 1)
#'
#' ## OUTPUT:
#' ## Call:
#' ## nocrossings(formula = survival::Surv(hepatitis$time, hepatitis$censor) ~
#' ## hepatitis$group, sided = 1)
#' ##
#' ## Decision = 1
#'
#' ## A decision value of 1 means the case of crossings or alternative orderings among the
#' ## survival functions is excluded. Thus, we can proceed to the one-sided test.
#'
#' result = supELtest(survival::Surv(hepatitis$time, hepatitis$censor)~
#' hepatitis$group, sided = 1)
#' summary(result)
#'
#' ## OUTPUT:
#' ## Call:
#' ## supELtest(formula = survival::Surv(hepatitis$time, hepatitis$censor) ~
#' ## hepatitis$group, sided = 1)
#' ##
#' ## One-sided maximally selected EL test statistic = 10.36, p = 0.006,
#' ## critical value based on bootstrap = 6.289 at a significance level of 0.05
#' @export
## generic function to summary an S3 object of class "supELtest"
summary.supELtest = function(object, digits = max(3L, getOption("digits") - 3L), quiet = FALSE, ...){
if(object$sided == 1){
if(quiet == FALSE){
cat("\nCall:\n", paste(deparse(object$call), sep = "\n", collapse = "\n"), "\n", sep = "")
cat("\nOne-sided maximally selected EL test statistic = ", format(object$teststat, digits = digits), ", p = ", format(object$pvalue, digits = digits), ",", sep = "")
cat("\ncritical value based on bootstrap = ", format(object$critval, digits = digits), " at a significance level of ", format(object$alpha, digits = digits), "\n", sep = "")
}
result = list(call = object$call, teststat = object$teststat, critval = object$critval, pvalue = object$pvalue, sided = object$sided, alpha = object$alpha)
}else if(object$sided == 2){
if(quiet == FALSE){
cat("\nCall:\n", paste(deparse(object$call), sep = "\n", collapse = "\n"), "\n", sep = "")
cat("\nTwo-sided maximally selected EL test statistic = ", format(object$teststat, digits = digits), ", p = ", format(object$pvalue, digits = digits), ",", sep = "")
cat("\ncritical value based on bootstrap = ", format(object$critval, digits = digits), " at a significance level of ", format(object$alpha, digits = digits), "\n", sep = "")
}
result = list(call = object$call, teststat = object$teststat, critval = object$critval, pvalue = object$pvalue, sided = object$sided, alpha = object$alpha)
}
invisible(result)
}
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