diff --git a/R/DESCRIPTION b/R/DESCRIPTION
index eece20a..2cca014 100644
--- a/R/DESCRIPTION
+++ b/R/DESCRIPTION
@@ -10,3 +10,4 @@ Author: Ben Hamner <ben@benhamner.com>
 License: BSD
 Collate:
     'metrics.r'
+RoxygenNote: 5.0.1
diff --git a/R/NAMESPACE b/R/NAMESPACE
index bb1943d..d4e8362 100644
--- a/R/NAMESPACE
+++ b/R/NAMESPACE
@@ -1,20 +1,22 @@
+# Generated by roxygen2: do not edit by hand
+
+export(MeanQuadraticWeightedKappa)
+export(ScoreQuadraticWeightedKappa)
 export(ae)
 export(apk)
 export(auc)
 export(ce)
+export(f1)
 export(ll)
 export(logLoss)
 export(mae)
 export(mapk)
-export(MeanQuadraticWeightedKappa)
 export(mse)
 export(msle)
+export(rae)
 export(rmse)
 export(rmsle)
-export(ScoreQuadraticWeightedKappa)
+export(rrse)
+export(rse)
 export(se)
 export(sle)
-export(rse)
-export(rrse)
-export(rae)
-export(f1)
diff --git a/R/R/metrics.r b/R/R/metrics.r
index 3d8ad57..7a29add 100644
--- a/R/R/metrics.r
+++ b/R/R/metrics.r
@@ -8,7 +8,7 @@
 #' @export
 se <- function (actual, predicted) (actual-predicted)^2
 
-#' Compute the mean squared error#'
+#' Compute the mean squared error
 #' This function computes the mean squared error between
 #' two vectors
 #'
@@ -17,7 +17,7 @@ se <- function (actual, predicted) (actual-predicted)^2
 #' @export
 mse <- function (actual, predicted) mean(se(actual, predicted))
 
-#' Compute the root mean squared error#'
+#' Compute the root mean squared error
 #' This function computes the root mean squared error
 #' between two vectors
 #'
@@ -26,7 +26,7 @@ mse <- function (actual, predicted) mean(se(actual, predicted))
 #' @export
 rmse <- function (actual, predicted) sqrt(mse(actual, predicted))
 
-#' Compute the absolute error#'
+#' Compute the absolute error
 #' This function computes the elementwise absolute error for a
 #' number or a vector
 #'
@@ -35,7 +35,7 @@ rmse <- function (actual, predicted) sqrt(mse(actual, predicted))
 #' @export
 ae <- function (actual, predicted) abs(actual-predicted)
 
-#' Compute the mean absolute error#'
+#' Compute the mean absolute error
 #' This function computes the mean absolte error between
 #' two vectors
 #'
diff --git a/R/man/MeanQuadraticWeightedKappa.Rd b/R/man/MeanQuadraticWeightedKappa.Rd
index 9d6604f..5d2ed92 100644
--- a/R/man/MeanQuadraticWeightedKappa.Rd
+++ b/R/man/MeanQuadraticWeightedKappa.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{MeanQuadraticWeightedKappa}
 \alias{MeanQuadraticWeightedKappa}
 \title{Compute the mean quadratic weighted kappa}
 \usage{
-  MeanQuadraticWeightedKappa(kappas, weights)
+MeanQuadraticWeightedKappa(kappas, weights)
 }
 \arguments{
-  \item{kappas}{is a vector of possible kappas}
+\item{kappas}{is a vector of possible kappas}
 
-  \item{weights}{is an optional vector of ratings}
+\item{weights}{is an optional vector of ratings}
 }
 \description{
-  This function computes the mean quadratic weighted kappa,
-  which can optionally be weighted
+This function computes the mean quadratic weighted
+kappa, which can optionally be weighted
 }
 
diff --git a/R/man/ScoreQuadraticWeightedKappa.Rd b/R/man/ScoreQuadraticWeightedKappa.Rd
index eb47a0d..ce14b8f 100644
--- a/R/man/ScoreQuadraticWeightedKappa.Rd
+++ b/R/man/ScoreQuadraticWeightedKappa.Rd
@@ -1,21 +1,22 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{ScoreQuadraticWeightedKappa}
 \alias{ScoreQuadraticWeightedKappa}
 \title{Compute the quadratic weighted kappa}
 \usage{
-  ScoreQuadraticWeightedKappa(rater.a, rater.b, min.rating,
-    max.rating)
+ScoreQuadraticWeightedKappa(rater.a, rater.b, min.rating, max.rating)
 }
 \arguments{
-  \item{rater.a}{is the first rater's ratings}
+\item{rater.a}{is the first rater's ratings}
 
-  \item{rater.b}{is the second rater's ratings}
+\item{rater.b}{is the second rater's ratings}
 
-  \item{min.rating}{is the minimum possible rating}
+\item{min.rating}{is the minimum possible rating}
 
-  \item{max.rating}{is the maximum possible rating}
+\item{max.rating}{is the maximum possible rating}
 }
 \description{
-  This function computes the quadratic weighted kappa
-  between two vectors of integers
+This function computes the quadratic weighted kappa
+between two vectors of integers
 }
 
diff --git a/R/man/ae.Rd b/R/man/ae.Rd
index 36de0e5..b8c4d70 100644
--- a/R/man/ae.Rd
+++ b/R/man/ae.Rd
@@ -1,18 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{ae}
 \alias{ae}
-\title{Compute the absolute error#'
+\title{Compute the absolute error
 This function computes the elementwise absolute error for a
 number or a vector}
 \usage{
-  ae(actual, predicted)
+ae(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth number or vector}
+\item{actual}{ground truth number or vector}
 
-  \item{predicted}{predicted number or vector}
+\item{predicted}{predicted number or vector}
 }
 \description{
-  Compute the absolute error#' This function computes the
-  elementwise absolute error for a number or a vector
+Compute the absolute error
+This function computes the elementwise absolute error for a
+number or a vector
 }
 
diff --git a/R/man/apk.Rd b/R/man/apk.Rd
index d9f1da3..5697e34 100644
--- a/R/man/apk.Rd
+++ b/R/man/apk.Rd
@@ -1,18 +1,20 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{apk}
 \alias{apk}
 \title{Compute the average precision at k}
 \usage{
-  apk(k, actual, predicted)
+apk(k, actual, predicted)
 }
 \arguments{
-  \item{k}{max length of predicted sequence}
+\item{k}{max length of predicted sequence}
 
-  \item{actual}{ground truth set (vector)}
+\item{actual}{ground truth set (vector)}
 
-  \item{predicted}{predicted sequence (vector)}
+\item{predicted}{predicted sequence (vector)}
 }
 \description{
-  This function computes the average precision at k between
-  two sequences
+This function computes the average precision at k
+between two sequences
 }
 
diff --git a/R/man/auc.Rd b/R/man/auc.Rd
index 7ea2e91..1ee054b 100644
--- a/R/man/auc.Rd
+++ b/R/man/auc.Rd
@@ -1,17 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{auc}
 \alias{auc}
 \title{Compute the area under the ROC (AUC)}
 \usage{
-  auc(actual, predicted)
+auc(actual, predicted)
 }
 \arguments{
-  \item{actual}{binary vector}
+\item{actual}{binary vector}
 
-  \item{predicted}{real-valued vector that defines the
-  ranking}
+\item{predicted}{real-valued vector that defines the ranking}
 }
 \description{
-  This function computes the area under the
-  receiver-operator characteristic (AUC)
+This function computes the area under the receiver-operator
+characteristic (AUC)
 }
 
diff --git a/R/man/ce.Rd b/R/man/ce.Rd
index 5f25816..1c44a67 100644
--- a/R/man/ce.Rd
+++ b/R/man/ce.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{ce}
 \alias{ce}
 \title{Compute the classification error}
 \usage{
-  ce(actual, predicted)
+ce(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the classification error between
-  two vectors
+This function computes the classification error
+between two vectors
 }
 
diff --git a/R/man/f1.Rd b/R/man/f1.Rd
index ff92f0a..024fce6 100644
--- a/R/man/f1.Rd
+++ b/R/man/f1.Rd
@@ -1,15 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{f1}
 \alias{f1}
-\title{Compute the f1 score}
+\title{Compute the f1 score
+This function computes the f1 score between
+two vectors.}
 \usage{
-  f1(actual, predicted)
+f1(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
-  
-  \item{predicted}{predicted vector}
+\item{actual}{ground truth vector}
+
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the f1 score given the actual and predicted vectors.
-  f1 score is calculated after calculating Precision and Recall from the two vectors. 
+Compute the f1 score
+This function computes the f1 score between
+two vectors.
 }
+
diff --git a/R/man/ll.Rd b/R/man/ll.Rd
index 010f8ac..8edc55b 100644
--- a/R/man/ll.Rd
+++ b/R/man/ll.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{ll}
 \alias{ll}
 \title{Compute the log loss}
 \usage{
-  ll(actual, predicted)
+ll(actual, predicted)
 }
 \arguments{
-  \item{actual}{binary ground truth number or vector}
+\item{actual}{binary ground truth number or vector}
 
-  \item{predicted}{predicted number or vector}
+\item{predicted}{predicted number or vector}
 }
 \description{
-  This function computes the elementwise log loss for a
-  number or a vector
+This function computes the elementwise log loss for a
+number or a vector
 }
 
diff --git a/R/man/logLoss.Rd b/R/man/logLoss.Rd
index 647dc2b..ad927a8 100644
--- a/R/man/logLoss.Rd
+++ b/R/man/logLoss.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{logLoss}
 \alias{logLoss}
 \title{Compute the mean log loss}
 \usage{
-  logLoss(actual, predicted)
+logLoss(actual, predicted)
 }
 \arguments{
-  \item{actual}{binary ground truth vector}
+\item{actual}{binary ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the mean log loss between two
-  vectors
+This function computes the mean log loss between
+two vectors
 }
 
diff --git a/R/man/mae.Rd b/R/man/mae.Rd
index b039e7d..568f59d 100644
--- a/R/man/mae.Rd
+++ b/R/man/mae.Rd
@@ -1,18 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{mae}
 \alias{mae}
-\title{Compute the mean absolute error#'
+\title{Compute the mean absolute error
 This function computes the mean absolte error between
 two vectors}
 \usage{
-  mae(actual, predicted)
+mae(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{vector}
+\item{predicted}{vector}
 }
 \description{
-  Compute the mean absolute error#' This function computes
-  the mean absolte error between two vectors
+Compute the mean absolute error
+This function computes the mean absolte error between
+two vectors
 }
 
diff --git a/R/man/mapk.Rd b/R/man/mapk.Rd
index 72aa5e0..aa744b7 100644
--- a/R/man/mapk.Rd
+++ b/R/man/mapk.Rd
@@ -1,18 +1,20 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{mapk}
 \alias{mapk}
 \title{Compute the mean average precision at k}
 \usage{
-  mapk(k, actual, predicted)
+mapk(k, actual, predicted)
 }
 \arguments{
-  \item{k}{max length of predicted sequence}
+\item{k}{max length of predicted sequence}
 
-  \item{actual}{list of ground truth sets (vectors)}
+\item{actual}{list of ground truth sets (vectors)}
 
-  \item{predicted}{list of predicted sequences (vectors)}
+\item{predicted}{list of predicted sequences (vectors)}
 }
 \description{
-  This function computes the mean average precision at k of
-  two lists of sequences.
+This function computes the mean average precision at k
+of two lists of sequences.
 }
 
diff --git a/R/man/mse.Rd b/R/man/mse.Rd
index dda963b..1b91d08 100644
--- a/R/man/mse.Rd
+++ b/R/man/mse.Rd
@@ -1,18 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{mse}
 \alias{mse}
-\title{Compute the mean squared error#'
+\title{Compute the mean squared error
 This function computes the mean squared error between
 two vectors}
 \usage{
-  mse(actual, predicted)
+mse(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  Compute the mean squared error#' This function computes
-  the mean squared error between two vectors
+Compute the mean squared error
+This function computes the mean squared error between
+two vectors
 }
 
diff --git a/R/man/msle.Rd b/R/man/msle.Rd
index 125cbfe..88da271 100644
--- a/R/man/msle.Rd
+++ b/R/man/msle.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{msle}
 \alias{msle}
 \title{Compute the mean squared log error}
 \usage{
-  msle(actual, predicted)
+msle(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the mean squared log error between
-  two vectors
+This function computes the mean squared log error between
+two vectors
 }
 
diff --git a/R/man/rae.Rd b/R/man/rae.Rd
index 207a6d3..138d127 100644
--- a/R/man/rae.Rd
+++ b/R/man/rae.Rd
@@ -1,21 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{rae}
 \alias{rae}
 \title{Compute the relative absolute error}
 \usage{
-  rae(actual, predicted)
+rae(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the relative absolute error between two vectors.
-  The relative absolute error is just the total absolute error,
-  normalized by the error of the simple predictor that predicts
-  the average values, as described in Witten et al. (2011).
-}
-\references{
-  Witten, Ian H, Eibe Frank, and Mark Hall (2011). Data Mining: Practical
-  Machine Learning Tools and Techniques. 3rd ed. Morgan Kaufman, p. 180.
+This function computes the relative absolute error between
+two vectors
 }
+
diff --git a/R/man/rmse.Rd b/R/man/rmse.Rd
index 6605bc0..d7f28d8 100644
--- a/R/man/rmse.Rd
+++ b/R/man/rmse.Rd
@@ -1,18 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{rmse}
 \alias{rmse}
-\title{Compute the root mean squared error#'
+\title{Compute the root mean squared error
 This function computes the root mean squared error
 between two vectors}
 \usage{
-  rmse(actual, predicted)
+rmse(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  Compute the root mean squared error#' This function
-  computes the root mean squared error between two vectors
+Compute the root mean squared error
+This function computes the root mean squared error
+between two vectors
 }
 
diff --git a/R/man/rmsle.Rd b/R/man/rmsle.Rd
index f5aa9bc..d49ae49 100644
--- a/R/man/rmsle.Rd
+++ b/R/man/rmsle.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{rmsle}
 \alias{rmsle}
 \title{Compute the root mean squared log error}
 \usage{
-  rmsle(actual, predicted)
+rmsle(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the root mean squared log error
-  between two vectors
+This function computes the root mean squared log error between
+two vectors
 }
 
diff --git a/R/man/rrse.Rd b/R/man/rrse.Rd
index 9697d05..fa73f97 100644
--- a/R/man/rrse.Rd
+++ b/R/man/rrse.Rd
@@ -1,21 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{rrse}
 \alias{rrse}
 \title{Compute the root relative squared error}
 \usage{
-  rrse(actual, predicted)
+rrse(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the root relative squared error between two vectors.
-  The root relative squared error is relative to what it would have been
-  if a simple predictor had been used. This simple predictor is
-  just the average of the actual values, as described in Witten et al. (2011).
-}
-\references{
-  Witten, Ian H, Eibe Frank, and Mark Hall (2011). Data Mining: Practical
-  Machine Learning Tools and Techniques. 3rd ed. Morgan Kaufman, p. 180.
+This function computes the root relative squared error between
+two vectors
 }
+
diff --git a/R/man/rse.Rd b/R/man/rse.Rd
index 16bdfd1..6b48b53 100644
--- a/R/man/rse.Rd
+++ b/R/man/rse.Rd
@@ -1,21 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{rse}
 \alias{rse}
 \title{Compute the relative squared error}
 \usage{
-  rse(actual, predicted)
+rse(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth vector}
+\item{actual}{ground truth vector}
 
-  \item{predicted}{predicted vector}
+\item{predicted}{predicted vector}
 }
 \description{
-  This function computes the relative squared error between two vectors.
-  The relative squared error is relative to what it would have been
-  if a simple predictor had been used. This simple predictor is
-  just the average of the actual values, as described in Witten et al. (2011).
-}
-\references{
-  Witten, Ian H, Eibe Frank, and Mark Hall (2011). Data Mining: Practical
-  Machine Learning Tools and Techniques. 3rd ed. Morgan Kaufman, p. 180.
+This function computes the relative squared error between
+two vectors
 }
+
diff --git a/R/man/se.Rd b/R/man/se.Rd
index a442714..93d7979 100644
--- a/R/man/se.Rd
+++ b/R/man/se.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{se}
 \alias{se}
 \title{Compute the squared error}
 \usage{
-  se(actual, predicted)
+se(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth number or vector}
+\item{actual}{ground truth number or vector}
 
-  \item{predicted}{predicted number or vector}
+\item{predicted}{predicted number or vector}
 }
 \description{
-  This function computes the elementwise squared error for
-  a number or a vector
+This function computes the elementwise squared error for a
+number or a vector
 }
 
diff --git a/R/man/sle.Rd b/R/man/sle.Rd
index 87b5198..6dbf121 100644
--- a/R/man/sle.Rd
+++ b/R/man/sle.Rd
@@ -1,16 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/metrics.r
 \name{sle}
 \alias{sle}
 \title{Compute the squared log error}
 \usage{
-  sle(actual, predicted)
+sle(actual, predicted)
 }
 \arguments{
-  \item{actual}{ground truth number or vector}
+\item{actual}{ground truth number or vector}
 
-  \item{predicted}{predicted number or vector}
+\item{predicted}{predicted number or vector}
 }
 \description{
-  This function computes the elementwise squared log error
-  for a number or a vector
+This function computes the elementwise squared log error for a
+number or a vector
 }