Plotting a dynamic, interactive globe with threejs
This interactive globe shows installed power for countries with largest wind energy installations. I will show you how to create the globe and add country-specific information.
Blog
Sankey-Diagram: Wind Energy Installations in Germany in 2018
We will learn to create a Sankey-diagram. With its help proportions and flow can be visualised. The thickness of lines directly represensts quantities. Complex relationships can be shown. More information can be found. Specifically it shows in which German federal state in which period since September 2014 how much new capacities of renewable energy is …
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Interactive Maps with leaflet
Introduction In 1854 a Cholera epidemic haunts London. By then common theory is that Cholera is transmitted by air. English physician John Snow doubts this theory and is maybe the first one to perform geospatial analysis. He plot locations of Cholera-deaths and pumps and finds the causal link between water and Cholera. We will take …
Creating Heatmaps in R
Heatmaps are a visually appealing way to present information in three dimensions. In this tutorial I will show you three different packages for heatmap creation. I will also present how data has to be formatted for each heatmap function.
ggplot2 Introduction
ggplot2 is a plotting environment and delivers very appealing graphs, has compact and good-readable code and is easy to learn. It only takes small changes to get complex visualisations. To me it is by far the best plotting environment in R.
Dynamic Timeseries Plotting
We will directly download precious metal price data to R with quantmod package and create a dynamic plot with dygraphs.
Monte Carlo Simulation, explained based on Buffons Needle Problem
Monte Carlo simulation is a stochastic method, in which a large number of random experiments is performed. This is helpful, especially if there is no analytical solution to a problem. I will present “Buffon’s needle” problem. The idea is to throw a needle on a grid with horizontal lines. The probability of a needle intersecting …
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Introduction to Association Rules
We will perform a Market Basket Analysis (also called Association Rules). This techniques shows which items occur together, like “users who bought X, also bought Y and Z”. We will use this method to find out, which properties are important to conclude that a mushroom is edible.
Training a simple linear model
Introduction In this tutorial we will take a look at measurements of Hubble (the telescope). Besides taking beautiful pictures, it measured speed and distance of Super-Novae. Similar data was used in 1929 by Hubble (the person) and he found out that there is a linear relationship. We will create a linear model based on observations …
Introduction to H2O
H2O is an open source platform for machine learning. It can be installed locally. It offers API access to R. This lecture will give you an introduction on how to use it. Objectives: Installation and Usage of H2O Requirements: R Data-Mining