Articles by Laurens Geffert

Nesting Birds and Models in R Dataframes

December 15, 2018 | Laurens Geffert

R Dataframes in the tidyverse are more than just simple tables these days. They can store complex information in list columns, and this becomes an immensely powerful framework when we use it to apply methods to different sets of data in parallel. In th...
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Airdrop delivery with A* pathfinding

April 6, 2018 | Laurens Geffert

This post is an event report and a quick walk through to a submission that I developed with a group of participants at an Alibaba / Met Office UK hackathon. We are using the A* algorithm with a couple of tweaks to route cargo balloons from London to a ...
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Editable Plots from R to PowerPoint

February 24, 2018 | Laurens Geffert

In this post I am giving a quick overview of how to create editable plots in PowerPoint from R. These plots are comprised of simple vector-based shapes and thus allow you to change labels, colours, or text position in seconds. Your project managers wi...
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Exploring Sales Data

October 1, 2017 | Laurens Geffert

A big part of the interview process for many data science positions is a data science task or assignment. Companies usually choose a data set that is typical for them, while only in rare cases a sample of their actual production data. Here, I am explor...
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