Articles by Pascal Schmidt

How I won an In-Class Kaggle Competition

February 16, 2022 | Pascal Schmidt

During my 4th year as an undergraduate student in statistics, I took a Big Data class where we had to compete in a Kaggle competition. This competition was about imputing missing values in a times series weather data set, acquired from 76 different weather stations in the United Kingdom. The data ... [Read more...]

The Question That Got Me My First Data Analyst Job

April 14, 2021 | Pascal Schmidt

In this blog post, we will be exploring how I answered a question that got me my first job as a data analyst. It was an open-ended question and was supposed to be answered in a casual/theoretical way. The question was “How would you collect all cities in Qatar ...

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Doing Row-wise Operations the Column-wise Way With tidyr pivot_longer

February 24, 2021 | Pascal Schmidt

Row-wise operation always feel a bit strange and awkward to me. At the same time they are really fascinating as well because we mostly deal with column-wise operations. In this blog post, we will be going through a #tidytuesday data set that is about plastic and we will be doing ... [Read more...]

Custom Message Handler in R Shiny – Resembling insertUI & removeUI

February 17, 2021 | Pascal Schmidt

In April this year, I will have used R Shiny for a year. I am coming from a statistics background and the first programming language I learned was R and then Python. I am using R Shiny almost every week at work and I am amazed by how powerful it ...

[Read more...]

Persistent Data Storage With a MySQL Database in R Shiny – An Example App

February 9, 2021 | Pascal Schmidt

Last tutorial, we built a Shiny application where the user can add, delete, and edit specific row. Today we want to integrate a remote MySQL database for persistent data storage. When the user changes the anything of the table, the results are send to the MySQL database and will be ...

[Read more...]

Predicting Housing Prices with Natural Language Processing NLP and Tidymodels

February 2, 2021 | Pascal Schmidt

In this tutorial, we will be predicting housing prices based on their descriptions. We will be using natural language processing, NLP, to build a machine learning model. We will be using bag of words with column vectors of ones and zeros. If you want to reproduce the analysis or check ...

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Creating Beautiful and Flexible Summary Statistics Tables in R With gtsummary

January 24, 2021 | Pascal Schmidt

gtsummary is a great package for doing summary statistics tables in R. The package has a lot of functionality and I like the flexibility of the package. Doing summary statistics tables with this package is very easy and I like this package almost as much as the arsenal package. Almost ...

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Adding Action Buttons in Rows of DT Data Table in R Shiny

January 19, 2021 | Pascal Schmidt

In this tutorial, we will be showing how to add action buttons to a DT data table in an R Shiny application. We will also be showing how to delete rows in a DT data table one by one in R Shiny, how to edit rows and how to add ... [Read more...]

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Articles by Pascal Schmidt

How I won an In-Class Kaggle Competition

The Question That Got Me My First Data Analyst Job

Doing Row-wise Operations the Column-wise Way With tidyr pivot_longer

Custom Message Handler in R Shiny – Resembling insertUI & removeUI

Persistent Data Storage With a MySQL Database in R Shiny – An Example App

Predicting Housing Prices with Natural Language Processing NLP and Tidymodels

Creating Beautiful and Flexible Summary Statistics Tables in R With gtsummary

Adding Action Buttons in Rows of DT Data Table in R Shiny

Articles by Pascal Schmidt

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