diff --git a/R/estimate.gamma.cpen.R b/R/estimate.gamma.cpen.R
index f895bfe..13a9ad7 100644
--- a/R/estimate.gamma.cpen.R
+++ b/R/estimate.gamma.cpen.R
@@ -5,7 +5,7 @@
 #' @param r r
 #' @param logn logn
 #' @param relat relations
-#' @return A list of `mlik`, `waic`, `dic`, znc `summary.fixed`
+#' @return A list of `mlik`, `waic`, `dic`, and `summary.fixed`
 #' @export
 estimate.gamma.cpen <- function(formula, data, r = 1.0 / 1000.0, logn = log(1000.0), relat = c("cos", "sigmoid", "tanh", "atan", "sin", "erf")) {
   fparam <- NULL
@@ -43,7 +43,7 @@ estimate.gamma.cpen <- function(formula, data, r = 1.0 / 1000.0, logn = log(1000
 
 #' @title Estimate gamma cpen 2
 #' @inheritParams estimate.gamma.cpen
-#' @return A list of `mlik`, `waic`, `dic`, znc `summary.fixed`
+#' @return A list of `mlik`, `waic`, `dic`, and `summary.fixed`
 #' @export
 estimate.gamma.cpen_2 = function(formula, data,r = 1.0/223.0,logn=log(223.0),relat=c("to23","expi","logi","to35","sini","troot","sigmoid"))
 {
diff --git a/man/estimate.gamma.cpen.Rd b/man/estimate.gamma.cpen.Rd
index f59e5bb..cee6f86 100644
--- a/man/estimate.gamma.cpen.Rd
+++ b/man/estimate.gamma.cpen.Rd
@@ -24,7 +24,7 @@ estimate.gamma.cpen(
 \item{relat}{relations}
 }
 \value{
-A list of `mlik`, `waic`, `dic`, znc `summary.fixed`
+A list of `mlik`, `waic`, `dic`, and `summary.fixed`
 }
 \description{
 Estimate gamma cpen
diff --git a/man/estimate.gamma.cpen_2.Rd b/man/estimate.gamma.cpen_2.Rd
index b9cb93c..d128d4b 100644
--- a/man/estimate.gamma.cpen_2.Rd
+++ b/man/estimate.gamma.cpen_2.Rd
@@ -24,7 +24,7 @@ estimate.gamma.cpen_2(
 \item{relat}{relations}
 }
 \value{
-A list of `mlik`, `waic`, `dic`, znc `summary.fixed`
+A list of `mlik`, `waic`, `dic`, and `summary.fixed`
 }
 \description{
 Estimate gamma cpen 2