diff --git a/DESCRIPTION b/DESCRIPTION
index d84d26a..6a028fa 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -28,7 +28,6 @@ Imports:
     ReinforcementLearning,
     openssl,
     stats,
-    moments,
     cluster
 Suggests: 
     testthat (>= 2.1.0),
diff --git a/R/mt_make_model.R b/R/mt_make_model.R
index 878e214..56b6305 100644
--- a/R/mt_make_model.R
+++ b/R/mt_make_model.R
@@ -44,7 +44,6 @@
 #' library(h2o)
 #' library(lazytrade)
 #' library(stats)
-#' library(moments)
 #'
 #' path_model <- normalizePath(tempdir(),winslash = "/")
 #' path_data <- normalizePath(tempdir(),winslash = "/")
diff --git a/R/mt_stat_evaluate.R b/R/mt_stat_evaluate.R
index 6318c50..5053347 100644
--- a/R/mt_stat_evaluate.R
+++ b/R/mt_stat_evaluate.R
@@ -31,7 +31,6 @@
 #' library(readr)
 #' library(lazytrade)
 #' library(stats)
-#' library(moments)
 #'
 #' path_model <- normalizePath(tempdir(),winslash = "/")
 #' path_data <- normalizePath(tempdir(),winslash = "/")
diff --git a/R/mt_stat_transf.R b/R/mt_stat_transf.R
index 31af2ef..46abb68 100644
--- a/R/mt_stat_transf.R
+++ b/R/mt_stat_transf.R
@@ -35,7 +35,6 @@
 #' library(magrittr)
 #' library(readr)
 #' library(lazytrade)
-#' library(moments)
 #'
 #' path_data <- normalizePath(tempdir(),winslash = "/")
 #'
diff --git a/man/aml_collect_data.Rd b/man/aml_collect_data.Rd
index 9bff679..aa2f494 100644
--- a/man/aml_collect_data.Rd
+++ b/man/aml_collect_data.Rd
@@ -5,7 +5,13 @@
 \title{Function to read new data, transform, aggregate and save data for further retraining of regression model
 for a single currency pair}
 \usage{
-aml_collect_data(indicator_dataset, symbol, timeframe, path_data)
+aml_collect_data(
+  indicator_dataset,
+  symbol,
+  timeframe,
+  path_data,
+  max_nrows = 2500
+)
 }
 \arguments{
 \item{indicator_dataset}{Dataset containing assets indicator which pattern will be used as predictor}
@@ -15,6 +21,8 @@ aml_collect_data(indicator_dataset, symbol, timeframe, path_data)
 \item{timeframe}{Data timeframe e.g. 1 min}
 
 \item{path_data}{Path where the aggregated historical data is stored, if exists in rds format}
+
+\item{max_nrows}{Integer, Maximum number of rows to collect}
 }
 \value{
 Function is writing files into Decision Support System folder, mainly file object with the model
@@ -25,8 +33,7 @@ Data objects are transformed to be suitable for Regression Modelling.
 Price change will be in the column 'LABEL', column X1 will keep the time index
 Result will be written to a new or aggregated to the existing '.rds' file
 
-Function is also checking that generated dataset is not too big.
-Should the dataset is too big (e.g. > 50000 rows), then only latest 40000 rows will be used.
+Function is keeping generated dataset to be not larger than specified by the user
 }
 \details{
 Function is not handling shift of the price and indicator datasets.
diff --git a/man/mt_make_model.Rd b/man/mt_make_model.Rd
index 9558f08..934fc67 100644
--- a/man/mt_make_model.Rd
+++ b/man/mt_make_model.Rd
@@ -66,7 +66,6 @@ library(readr)
 library(h2o)
 library(lazytrade)
 library(stats)
-library(moments)
 
 path_model <- normalizePath(tempdir(),winslash = "/")
 path_data <- normalizePath(tempdir(),winslash = "/")
diff --git a/man/mt_stat_evaluate.Rd b/man/mt_stat_evaluate.Rd
index bb0645a..27b5638 100644
--- a/man/mt_stat_evaluate.Rd
+++ b/man/mt_stat_evaluate.Rd
@@ -38,7 +38,6 @@ library(dplyr)
 library(readr)
 library(lazytrade)
 library(stats)
-library(moments)
 
 path_model <- normalizePath(tempdir(),winslash = "/")
 path_data <- normalizePath(tempdir(),winslash = "/")
diff --git a/man/mt_stat_transf.Rd b/man/mt_stat_transf.Rd
index 3d79f74..41baa41 100644
--- a/man/mt_stat_transf.Rd
+++ b/man/mt_stat_transf.Rd
@@ -55,7 +55,6 @@ library(stats)
 library(magrittr)
 library(readr)
 library(lazytrade)
-library(moments)
 
 path_data <- normalizePath(tempdir(),winslash = "/")