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#' @name isSimpleGame
#' @title Check if game is simple
#' @description isSimpleGame checks if a TU game is a simple game.
#' A TU game is a simple game in the sense of the book by
#' Peleg and Sudhoelter (2007), p. 16, if and only if the
#' game is monotonic and the values of all coalitions are
#' either \code{0} or \code{1}.
#' @aliases isSimpleGame
#' @export isSimpleGame
#' @template author/JS
#' @template cites/PELEG_ET_SUDHOELTER_2007
#' @templateVar PELEG_ET_SUDHOELTER_2007_P p. 16
#' @template param/v
#' @return \code{TRUE} if the game is essential, else \code{FALSE}.
#' @examples
#' library(CoopGame)
#' isSimpleGame(c(0,0,0,1,0,1,1))
#'
#' \donttest{
#' #Example of a simple game
#' library(CoopGame)
#' v1<-c(0,0,0,0,1,1,1)
#' isSimpleGame(v1)
#'
#' #Example of a game which not simple
#' library(CoopGame)
#' v2<-c(0,0,0,0,1,1,2)
#' isSimpleGame(v2)
#'
#' #Another example of a game which not simple
#' #according to our definition
#' library(CoopGame)
#' v3<-c(1,0,0,0,1,1,1)
#' isSimpleGame(v3)
#' }
#'
isSimpleGame<-function(v){
paramCheckResult=getEmptyParamCheckResult()
initialParamCheck_isSimpleGame(paramCheckResult = paramCheckResult, v)
A = v
boolRetVal=TRUE
n=getNumberOfPlayers(A)
N=length(A)
tolerance = 1e-15
if (!isMonotonicGame(A))
{
boolRetVal = FALSE
return(boolRetVal)
}
for (i in 1:N)
{
if ((abs(A[i]-0)>tolerance) && (abs(A[i]-1)>tolerance))
{
boolRetVal = FALSE
return(boolRetVal)
}
}
return(boolRetVal)
}
initialParamCheck_isSimpleGame=function(paramCheckResult,v=v){
stopOnInvalidGameVector(paramCheckResult, v)
}
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