diff --git a/DESCRIPTION b/DESCRIPTION
index 40ae051..d59803b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -3,11 +3,11 @@ Type: Package
 Title: Visualize Values As Circles With a Circle-Plot
 Version: 0.1.0
 Author: BenSt099
-Maintainer: BenSt099
+Maintainer: BenSt099 <benst099@proton.me>
 Description: This package provides tools to create circleplots.
     These plots can be used to visualize proportions between different
     objects. The proportions are drawn as circles.
-License: MIT
+License: MIT + file LICENSE
 Imports:
     plotrix
 Suggests:
@@ -15,5 +15,4 @@ Suggests:
 URL: https://github.com/BenSt099/circlesplot
 BugReports: https://github.com/BenSt099/circlesplot/issues
 Encoding: UTF-8
-LazyData: true
 RoxygenNote: 7.3.1
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..0559387
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,2 @@
+YEAR: 2024
+COPYRIGHT HOLDER: BenSt099
diff --git a/NAMESPACE b/NAMESPACE
index 9c9f9ac..bebcd2b 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1 +1,6 @@
-exportPattern("^[^\\.]")
+# Generated by roxygen2: do not edit by hand
+
+export(circlesplot)
+importFrom(graphics,par)
+importFrom(graphics,text)
+importFrom(plotrix,draw.circle)
diff --git a/R/circlesplot.R b/R/circlesplot.R
index 0e4b325..7d5c98d 100644
--- a/R/circlesplot.R
+++ b/R/circlesplot.R
@@ -1,30 +1,37 @@
-library("plotrix")
-
 #' Plots a circlesplot based upon the given input
 #'
-#' @param cp_vals
-#' @param cp_text
-#' @param cp_max
-#' @param cp_line_width
-#' @param cp_title
-#' @param cp_color
-#' @param cp_title_size
+#' @param cp_vals Vector with values
+#' @param cp_text Vector with appropriate description of values
+#' @param cp_max Maximum number of circles in a row
+#' @param cp_line_width Line-width of the circles
+#' @param cp_title Title of the plot
+#' @param cp_color Vector of hex-colors for each circle
+#' @param cp_title_size Size of the title
 #'
+#' @importFrom graphics par text
+#' @importFrom plotrix draw.circle
 #' @return Nothing
 #' @export
 #'
 #' @examples
 #'
+#' library('plotrix')
 #' colors = c('#D1BBD7', '#AE76A3', '#882E72', '#1965B0', '#5289C7', '#7BAFDE', '#4EB265', '#90C987')
-#' circlesplot(cp_vals=c(5,5,4,5,5,5,2,1), cp_text=c('8','7','6','5','4','3','2','1'), cp_max=3L, cp_title="Some title", cp_color=colors)
+#' values = c(5,5,4,5,5,5,2,1)
+#' text = c('8','7','6','5','4','3','2','1')
+#' circlesplot(cp_vals=values, cp_text=text, cp_max=3L, cp_title="Some title", cp_color=colors)
 #'
 #' # Proportions among planets
-#' circlesplot(cp_vals=c(4879.4,12103.6,12756.3,6792.4,142984,120536,51118,49528), cp_text=c('Mercury','Venus','Earth','Mars','Jupiter','Saturn','Uranus','Neptune'), cp_max=5L, cp_title="Planets")
-#'
+#' library('plotrix')
+#' planets = c('Mercury','Venus','Earth','Mars','Jupiter','Saturn','Uranus','Neptune')
+#' diameter = c(4879.4,12103.6,12756.3,6792.4,142984,120536,51118,49528)
+#' circlesplot(cp_vals=diameter, cp_text=planets, cp_max=5L, cp_title="Planets")
 #'
 #' # For coloring, you can also use viridis package:
 #' library("viridis")
-#' circlesplot(cp_vals=c(5,5,4,5,5,5,2,1), cp_text=c('8','7','6','5','4','3','2','1'), cp_max=3L, cp_title="Some title", cp_color=viridis(8))
+#' values = c(5,5,4,5,5,5,2,1)
+#' text = c('8','7','6','5','4','3','2','1')
+#' circlesplot(cp_vals=values, cp_text=text, cp_max=4L, cp_title="Some title", cp_color=viridis(8))
 #'
 circlesplot <- function(cp_vals=NULL, cp_text=NULL, cp_max=10L, cp_line_width=2L, cp_title="", cp_color=NULL, cp_title_size=1.5) {
 
@@ -72,13 +79,13 @@ circlesplot <- function(cp_vals=NULL, cp_text=NULL, cp_max=10L, cp_line_width=2L
 
 .check_params <- function(cp_vals, cp_text, cp_max, cp_line_width, cp_title, cp_color, cp_title_size) {
 
-  if (class(cp_max) != "integer") {
+  if (!inherits(cp_max, "integer")) {
     stop("[Error][circlesplot][Error in Parameter(s)]: Parameter 'cp_max' should be integer!")
   }
   if (cp_max <= 0L) {
     stop("[Error][circlesplot][Error in Parameter(s)]: Parameter 'cp_max' should be greater than zero!")
   }
-  if (class(cp_line_width) != "integer") {
+  if (!inherits(cp_line_width, "integer")) {
     stop("[Error][circlesplot][Error in Parameter(s)]: Parameter 'cp_line_width' should be integer!")
   }
   if (cp_line_width <= 0L) {
@@ -104,7 +111,7 @@ circlesplot <- function(cp_vals=NULL, cp_text=NULL, cp_max=10L, cp_line_width=2L
       stop("[Error][circlesplot][Error in Parameter(s)]: Vector 'cp_color' should have same length as 'cp_vals'!")
     }
   }
-  if (class(cp_title_size) != "numeric") {
+  if (!inherits(cp_title_size, "numeric")) {
     stop("[Error][circlesplot][Error in Parameter(s)]: Parameter 'cp_title_size' should be numeric!")
   }
   if (cp_title_size < 1) {
diff --git a/inst/CITATION b/inst/CITATION
index e252fe0..a640054 100644
--- a/inst/CITATION
+++ b/inst/CITATION
@@ -1,7 +1,7 @@
 bibentry(
-  bibtype = "book",
-  author = "BenSt099",
-  title = "Package circlesplot",
-  year = "2024",
+  bibtype  = "misc",
+  title    = "circlesplot",
+  author   = "BenSt099",
+  year     = "2024",
   url = "https://github.com/BenSt099/circlesplot",
 )
diff --git a/man/circlesplot.Rd b/man/circlesplot.Rd
index 4cc89ca..4cb3b4c 100644
--- a/man/circlesplot.Rd
+++ b/man/circlesplot.Rd
@@ -15,7 +15,19 @@ circlesplot(
 )
 }
 \arguments{
-\item{cp_title_size}{}
+\item{cp_vals}{Vector with values}
+
+\item{cp_text}{Vector with appropriate description of values}
+
+\item{cp_max}{Maximum number of circles in a row}
+
+\item{cp_line_width}{Line-width of the circles}
+
+\item{cp_title}{Title of the plot}
+
+\item{cp_color}{Vector of hex-colors for each circle}
+
+\item{cp_title_size}{Size of the title}
 }
 \value{
 Nothing
@@ -25,12 +37,22 @@ Plots a circlesplot based upon the given input
 }
 \examples{
 
+library('plotrix')
 colors = c('#D1BBD7', '#AE76A3', '#882E72', '#1965B0', '#5289C7', '#7BAFDE', '#4EB265', '#90C987')
-circlesplot(cp_vals=c(5,5,4,5,5,5,2,1), cp_text=c('8','7','6','5','4','3','2','1'), cp_max=3L, cp_title="Some title", cp_color=colors)
+values = c(5,5,4,5,5,5,2,1)
+text = c('8','7','6','5','4','3','2','1')
+circlesplot(cp_vals=values, cp_text=text, cp_max=3L, cp_title="Some title", cp_color=colors)
 
+# Proportions among planets
+library('plotrix')
+planets = c('Mercury','Venus','Earth','Mars','Jupiter','Saturn','Uranus','Neptune')
+diameter = c(4879.4,12103.6,12756.3,6792.4,142984,120536,51118,49528)
+circlesplot(cp_vals=diameter, cp_text=planets, cp_max=5L, cp_title="Planets")
 
 # For coloring, you can also use viridis package:
 library("viridis")
-circlesplot(cp_vals=c(5,5,4,5,5,5,2,1), cp_text=c('8','7','6','5','4','3','2','1'), cp_max=3L, cp_title="Some title", cp_color=viridis(8))
+values = c(5,5,4,5,5,5,2,1)
+text = c('8','7','6','5','4','3','2','1')
+circlesplot(cp_vals=values, cp_text=text, cp_max=4L, cp_title="Some title", cp_color=viridis(8))
 
 }