Blog Archives

Debugging in R: How to Easily and Efficiently Conquer Errors in Your Code

November 19, 2019
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Debugging in R: How to Easily and Efficiently Conquer Errors in Your Code

When you write code, you’re sure to run into problems from time to time. Debugging is the process of finding errors in your code to figure out why it’s behaving in unexpected ways. This typically involves: ...

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Multi-Armed Bandits as an A/B Testing Solution

September 26, 2019
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Multi-Armed Bandits as an A/B Testing Solution

These days, most people are familiar with the concept of A/B testing. This is one of the most common ways to make advertising decisions, particularly in online marketing. In an A/B test, the customer base is divided into two or more groups, each of which is...

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Best Practice: Development of Robust Shiny Dashboards as R Packages

September 9, 2019
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Best Practice: Development of Robust Shiny Dashboards as R Packages

This blog article is dedicated to creating dashboards. Dashboards are an excellent interactive tool for visualizing raw data, aggregated information, and analytical results. When developing software solutions with R, we at INWT use the shiny package by RStudio. With shiny you can create apps that act...

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What’s the Best Statistical Software? A Comparison of R, Python, SAS, SPSS and STATA

July 25, 2019
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Common statistics program packages differ considerably in terms of their strengths, weaknesses, and handling. The decision as to which system is the best fit should be made with care. Changing to a new system can result in high costs for ...

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Shiny Modules

July 16, 2019
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Shiny Modules

Tidiness is half the life .. this is a German saying that you might not necessarily have to live. While it becomes essential in programming, at least in my opinion. Because when you do not invest a little time into the order and structure of your...

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rsync as R package

May 21, 2019
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rsync as R package

In this article we present our R package rsync, which serves as an interface between R and the popular Linux command line tool rsync. Originally rsync is an open source tool for efficiently synchronizing files. Published by Paul Mackerras and Andrew Tridgell under the GNU General...

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Using Modules in R

May 7, 2019
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Using Modules in R

When a code base grows we may think of using several files first and then source them. Functions, of course, are rightfully advocated to new R users, and are the essential building block. Packages are then, already, the next level of abstraction we have to offer....

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ggCorpIdent: Stylize ggplot2 Graphics in Your Corporate Design

March 25, 2019
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ggCorpIdent: Stylize ggplot2 Graphics in Your Corporate Design

This is the add-on to our recently published R Markdown template for business reports. Since we’re working with ggplot2 on a daily basis and use it in nearly every our projects, we designed a ggplot2 theme in our corporate design. That is, it uses our font,...

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R Markdown Template for Business Reports

January 30, 2019
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R Markdown Template for Business Reports

In this post I'd like to introduce the R Markdown template for business reports by INWTlab. It's been my aim to have a nice and clean template that is easy to customize in colors, cover and logo. I know there are quite a few templates available,...

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Cluster Analysis – Part 2: Hands On

November 21, 2018
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Cluster Analysis – Part 2: Hands On

library(broom) library(cluster) library(dplyr) library(ggplot2) library(ggdendro) In the first part of this blog series, we examined the theoretical foundations of cluster analysis. In the following article we put the theory into practice using R. For the analysis in R, we will use the variables mpg (fuel consumption...

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