Last week, we started a new course titled “Statistical Programming and Open Science Methods”. It is being offered under the research program of TRR 266 “Accounting for Transparency” and enables students to conduct data-based research so that...

The ‘ExPanDaR’ package offers a toolbox for interactive exploratory data analysis (EDA). You can read more about it here. The ‘ExPanD’ shiny app allows you to customize your analysis to some extent but often you might want to continue and extend your analysis with additional models and visualizations that are ...

Following up on a recent blog article that discussed how to use R to explore your researcher degrees of freedom, this post introduces a specification curve plot as suggested in Simonsohn, Simmons and Nelson. With this plot, you can eyeball how various researcher degrees of freedom affect your main outcome ...

Interactive EDA is nice but customized interactive EDA is even nicer. To celebrate the new CRAN version of my ‘ExPanDaR’ package I prepare a customized variant of ‘ExPanD’ to explore the U.S. EPA data on fuel economy. Our objective is to develop an interactive display that guides the reader ...

Interactive EDA is nice but customized interactive EDA is even nicer. To celebrate the new CRAN version of my ‘ExPanDaR’ package I prepare a customized variant of ‘ExPanD’ to explore the U.S. EPA data on fuel economy. Our objective is to develop an interactive display that guides the reader ...

Overview Today, I used a shiny app to run a classroom experiment in the first class of my introductory cost accounting course. I uploaded code, data and materials to github so that everybody can reuse it to construct similar experiments and, of cou...

I am an applied economist working in the area of accounting and corporate transparency. I work with observational data a lot, meaning with data that is already available and not under my control. Whenever I set sails to design a test, there are a lot of decisions to take: Which ...

Last week, the German NGO Open Knowledge Foundation Deutschland e.V. has made German Trade Resister data available via the project OffeneRegister.de, together with the British NGO opencorporates. In my last blog post I checked the general accessibility of the data. In this quick follow-up post I follow an ...

Last week, the German NGO Open Knowledge Foundation Deutschland e.V. has made German Trade Resister data available via the project OffeneRegister.de, together with the British NGO opencorporates. In my last blog post I checked the general accessibility of the data. In this quick follow-up post I follow an ...

Last week, the German NGO Open Knowledge Foundation Deutschland e.V. has made German Trade Resister data available via the project OffeneRegister.de, together with the British NGO opencorporates. While the data from German Trade Resister is publicly available in principle, retrieving the data is a case-by-case activity and is ...

As the year is closing down, why not spend some of the free time to explore your email data using R and the tidyverse? When I learned that Mac OS Mail stores its internal data in a SQLite database file I was hooked. A quick dive in your email archive ...

Exploratory data analysis is important, everybody knows that. With R, it is also easy. Below you see three lines of code that allow you to interactively explore the Preston Curve, the prominent association of country level real income per capita with life expectancy.

install.packages("ExPanDaR")
library(ExPanDaR)
wb <- read.csv("https://joachim-gassen.github.io/data/wb_condensed.csv")
ExPanD(wb, cs_id = "country", ts_id = "year")

After running these three lines of ...

The awesome blog post by Tyler Morgan-Wall on 3d printing maps with his rayshader package rekindled an old desire of mine: Sometimes I would like to touch data. I am a big fan of data visualization and being able to add a third dimension and this haptic feel to the ...

Did you ever want to do a quick exploratory pass on a panel data set? Did you ever wish to give somebody (e.g., a reviewer or a fellow researcher), the opportunity to explore your data and your findings but can’t provide your raw data? Do you get bored ...