diff --git a/R/gs_cp.R b/R/gs_cp.R
index cf60c1df3..9e303c56b 100644
--- a/R/gs_cp.R
+++ b/R/gs_cp.R
@@ -76,11 +76,17 @@
 #'                    info_scale = "h0_h1_info") |> to_integer()
 #'
 #' # calculate conditional power
-#' # case 1: currently at IA1, compute conditional power at IA2, IA3 and FA, with default theta = NULL
-#' gs_cp(x = x, i = 1, zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
+#' # case 1: currently at IA1, compute conditional power at IA2, IA3 and FA, 
+#' # with default theta = NULL
+#' gs_cp(x = x, i = 1, 
+#' zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
 #'
-#' # case 2: currently at IA1, compute conditional power at IA2, IA3 and FA, with user-input theta
-#' gs_cp(x = x, theta = c(0.15, 0.2, 0.25, 0.3), i = 1, zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
+#' # case 2: currently at IA1, compute conditional power at IA2, IA3 and FA, 
+#' # with user-input theta
+#' gs_cp(x = x, 
+#'   theta = c(0.15, 0.2, 0.25, 0.3), 
+#'   i = 1, 
+#'   zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
 #'
 gs_cp <- function(x = NULL, theta = NULL, i = 1, zi = NULL){
   # ------------------------------ #
diff --git a/R/gs_cp_simple.R b/R/gs_cp_simple.R
index 46e11c488..1a97176e4 100644
--- a/R/gs_cp_simple.R
+++ b/R/gs_cp_simple.R
@@ -43,7 +43,8 @@
 #' @examples
 #' library(gsDesign2)
 #' library(gsDesign)
-#' # Calculate conditional power with optional user-input theta (if NULL, will come from the input design)
+#' # Calculate conditional power with optional user-input theta 
+#' # (if NULL, will come from the input design)
 #' alpha <- 0.025
 #' beta <- 0.1
 #' ratio <- 1
diff --git a/man/gs_cp.Rd b/man/gs_cp.Rd
index a86b18b37..e83471988 100644
--- a/man/gs_cp.Rd
+++ b/man/gs_cp.Rd
@@ -70,10 +70,16 @@ x <- gs_design_ahr(enroll_rate = enroll_rate, fail_rate = fail_rate,
                    info_scale = "h0_h1_info") |> to_integer()
 
 # calculate conditional power
-# case 1: currently at IA1, compute conditional power at IA2, IA3 and FA, with default theta = NULL
-gs_cp(x = x, i = 1, zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
+# case 1: currently at IA1, compute conditional power at IA2, IA3 and FA, 
+# with default theta = NULL
+gs_cp(x = x, i = 1, 
+zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
 
-# case 2: currently at IA1, compute conditional power at IA2, IA3 and FA, with user-input theta
-gs_cp(x = x, theta = c(0.15, 0.2, 0.25, 0.3), i = 1, zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
+# case 2: currently at IA1, compute conditional power at IA2, IA3 and FA, 
+# with user-input theta
+gs_cp(x = x, 
+  theta = c(0.15, 0.2, 0.25, 0.3), 
+  i = 1, 
+  zi = -gsDesign::hrn2z(hr = 0.8, n = 150+180, ratio = 1))
 
 }
diff --git a/man/gs_cp_simple.Rd b/man/gs_cp_simple.Rd
index efb615e90..9143303ad 100644
--- a/man/gs_cp_simple.Rd
+++ b/man/gs_cp_simple.Rd
@@ -39,7 +39,8 @@ and \eqn{\theta_i} is the natural parameter for treatment effect at analysis \eq
 \examples{
 library(gsDesign2)
 library(gsDesign)
-# Calculate conditional power with optional user-input theta (if NULL, will come from the input design)
+# Calculate conditional power with optional user-input theta 
+# (if NULL, will come from the input design)
 alpha <- 0.025
 beta <- 0.1
 ratio <- 1