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#' Remove everything except functions
#' 
#' Remove everything from the global environment except functions
#' @export 

rm.except.fn <- function(){
        rm(list = setdiff(ls(envir = .GlobalEnv), lsf.str(envir = .GlobalEnv)), envir = .GlobalEnv)
}

#' Remove only functions
#' 
#' Remove functions from the global environment
#' @export 

rm.fn <- function(){
        rm(list=lsf.str(envir = .GlobalEnv), envir = .GlobalEnv)
}


#' Remove everything except...
#' 
#' Remove everything from the global environment except named element. No default.
#' @param x Character vector of elements to be kept. No default
#' @export 

rm.all.except <- function(x){
        x <- c("rm.all.except",x)
        rm(list = ls(envir = .GlobalEnv)[!ls(envir = .GlobalEnv) %in% x], envir = .GlobalEnv)
}