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We provide practical tutorials on data mining, visualization and statistics for decision making.

Different distance measures are available for clustering analysis. This article describes how to perform clustering in R using correlation as distance metrics. Contents: Prerequisites Demo data Draw heatmaps using pheatmap Draw heatmaps using gplots Summary See also Prerequisites The following R packages will be...

25 Oct

Clustering using Correlation as Distance Measures in R

kassambara

This article describes how to extract text from PDF in R using the pdftools package. Installation For MAC OSX and Windows, you can use the following code to install directly from CRAN repository: install.packages("pdftools") For Linux/Unix systems, you may need to first install...

23 Oct

Extract Text from PDF in R

kassambara

This article describes how to quickly display summary statistics using the R package skimr. skimr handles different data types and returns a skim_df object which can be included in a tidyverse pipeline or displayed nicely for the human reader. Key features of skimr: Provides...

25 Jan

Display a Beautiful Summary Statistics in R using Skimr Package

kassambara

Descriptive Statistics

This article presents the fs R package, which provides a cross-platform, uniform interface to file system operations. fs functions are divided into four main categories: path_ for manipulating and constructing paths file_ for files dir_ for directories link_ for links Contents: Prerequistes Some Key...

25 Jan

How to Easily Manipulate Files and Directories in R

kassambara

This article presents how to easily highlight a ggplot using the gghighlight package. Contents: Prerequisites Line plot Histogram Scatter plot Bar plot Prerequisites Load required packages and set the default ggplot2 theme to theme_bw(). library(tidyverse) library(gghighlight) theme_set(theme_bw()) Line plot Basic line plot p <-...

25 Jan

gghighlight: Easy Way to Highlight a GGPlot in R

kassambara

ggplot2 extensions

This article describes how to create animation in R using the gganimate R package. gganimate is an extension of the ggplot2 package for creating animated ggplots. It provides a range of new functionality that can be added to the plot object in order to...

25 Jan

gganimate: How to Create Plots with Beautiful Animation in R

kassambara

ggplot2 extensions

This article describes how create easily an interactive web framework for exploring data in R using the datadigest package. This tool provides a concise summary of every variable in a data frame and includes interactive features such as real-time filters, grouping, and highlighting. This...

16 Jan

Simple Interactive Framework for Exploring Data in R

kassambara

Interactive Visualization

This article shows how to visualize one numeric variable against multiple others. Prerequisites Load required R package and set the default theme to theme_bw() : library(tidyverse) theme_set( theme_bw() + theme(legend.position = "top") ) Data preparation Demo data: head(iris, 3) ## Sepal.Length Sepal.Width Petal.Length Petal.Width...

16 Jan

How to Plot One Variable against Multiple Others

kassambara

ggplot2 FAQ

You will learn how to plot all variables in a data frame using the ggplot2 R package. Prerequisites Load required R package and set the default theme to theme_minimal() : library(tidyverse) theme_set( theme_minimal() + theme(legend.position = "top") ) Data preparation Demo data: head(iris, 3)...

16 Jan

How to Plot All Variables in a Dataset

kassambara

This article describes how to plot a correlation network in R using the corrr package. Related article: Easy Correlation Matrix Analysis in R Using Corrr Package Contents: Load required R packages Data Compute correlation matrix Create a correlation network Cleaning up the correlation network...

16 Jan

Easily Create a Correlation Network in R using the Corrr Package

kassambara

Correlation Analysis