diff --git a/R/summarize_rtestimate.R b/R/summarize_rtestimate.R
index 6e11fb9..012cbcd 100644
--- a/R/summarize_rtestimate.R
+++ b/R/summarize_rtestimate.R
@@ -23,14 +23,14 @@ new_summarize <- function(
   checkmate::assert_integer(date)
   checkmate::assert_double(median)
   checkmate::assert_double(lb)
-  checkmate::assert_double(up)
+  checkmate::assert_double(ub)
   checkmate::assert_string(package)
 
   # Checking the length
   len_date <- length(date)
   len_median <- length(median)
   len_lb <- length(lb)
-  len_up <- length(up)
+  len_up <- length(ub)
   if (len_date != len_median || len_date != len_lb || len_date != len_up) {
     stop("The length of the date, median, lb, and ub should be the same.")
   }
@@ -124,10 +124,10 @@ summarize_rtestimate.epinow <- function(x, level = 0.95, ...) {
 #' @details The `estimate_R` method is for the `EpiEstim` package.
 #' @rdname summarize_rtestimate
 summarize_rtestimate.estimate_R <- function(x, ...) {
+  
   if (!requireNamespace("EpiEstim", quietly = TRUE)) {
     cli::cli_abort("You must install the {.pkg EpiEstim} package for this functionality.")
   }
-  checkmate::assert_number(level, lower = 0, upper = 1)
   
   new_summarize(
     date    = x$R$t_end,
diff --git a/man/new_summarize.Rd b/man/new_summarize.Rd
index 78015da..716f653 100644
--- a/man/new_summarize.Rd
+++ b/man/new_summarize.Rd
@@ -4,7 +4,7 @@
 \alias{new_summarize}
 \title{Create a new summary object}
 \usage{
-new_summarize(date, median, lb, up, package)
+new_summarize(date, median, lb, ub, package)
 }
 \arguments{
 \item{date}{Integer vector. vector of index dates.}
@@ -13,7 +13,7 @@ new_summarize(date, median, lb, up, package)
 
 \item{lb}{Double vector. vector of lower bounds.}
 
-\item{up}{Double vector. vector of upper bounds.}
+\item{ub}{Double vector. vector of upper bounds.}
 
 \item{package}{String. Name of the package.}
 }
@@ -23,7 +23,7 @@ A list of class \code{summrt_summary}. with the following components:
 \item \code{date}: Integer vector. vector of index dates.
 \item \code{median}: Double vector. vector of median values.
 \item \code{lb}: Double vector. vector of lower bounds.
-\item \code{up}: Double vector. vector of upper bounds.
+\item \code{ub}: Double vector. vector of upper bounds.
 \item \code{package}: String. Name of the package.
 }
 }