Publications by Peter Prevos
Simulating Water Consumption to Develop Analysis and Reporting
I am currently working on developing analytics for a digital water metering project. Over the next five years, we are enabling 70,000 customer water meters with digital readers and transmitters. The data is not yet available but we don’t want to wait to build reporting systems until after the data is live. The R language comes to the rescue as...
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Simulating Water Consumption to Develop Analysis and Reporting
I am currently working on developing analytics for a digital water metering project. Over the next five years, we are enabling 70,000 customer water meters with digital readers and transmitters. The data is not yet available but we don’t want to wait to build reporting systems until after the data is live. The R language comes to the rescue as...
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Analysing Digital Water Meter Data using the Tidyverse
In last week’s article, I discussed how to simulate water consumption data to help develop analytics and reporting. This post describes how to create a diurnal curve from standard digital metering data. Data Source The simulated data consists of three fields: DevEUI: Unique identifier of the digital water meter. Timestamp in Coordinated Uni...
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Topological Tomfoolery in R: Plotting a Möbius Strip
Topology is, according to Clifford Pickover, the “silly putty of mathematics”. This branch of maths studies the transformation of shapes, knots and other complex geometry problems. One of the most famous topics in topology is the Möbius strip. This shape has some unusual properties which have inspired many artists, inventors, mathematician...
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Tap Water Sentiment Analysis using Tidytext
In developed countries, tap water is safe to drink and available for a meagre price. Despite the fact that high-quality drinking water is almost freely available, the consumption of bottled water is increasing every year. Bottled water companies use sophisticated marketing strategies, while water utilities are mostly passive providers of public s...
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Approximations of Pi: A Random Walk though the Beauty of Pi
Off all thinkable numbers, Pi has somewhat of celebrity status. It is so famous it even has its holiday. Mathematicians who use the American way to write dates recognise March the 14th as Pi Day. Some authors have even assigned a mystical status to the number of Pi. In the novel Contact by Carl Sagan, the heroine Ellie discovers a hidden message...
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Qualitative Data Science: Using RQDA to analyse interviews
Qualitative data science sounds like a contradiction in terms. Data scientists generally solve problems using numerical solutions. Even the analysis of text is reduced to a numerical problem using Markov chains, topic analysis, sentiment analysis and other mathematical tools. Scientists and professionals consider numerical methods the gold standa...
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Qualitative Data Science: Using RQDA to analyse interviews
Qualitative data science sounds like a contradiction in terms. Data scientists generally solve problems using numerical solutions. Even the analysis of text is reduced to a numerical problem using Markov chains, topic analysis, sentiment analysis and other mathematical tools. Scientists and professionals consider numerical methods the gold standa...
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Laser Beams and Elliptical Billiards: Euler Problem 144
Euler problem 144 has been one of the most fun to solve. The underlying problem is the pathway of the reflection of a laser inside an ellipse-shaped mirror. Before I delve into this problem, I like to share this delightful video from Numberphile in which Alex Bellos demonstrates an elliptical billiards table. The billiards problem is mathematical...
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Defining Marketing with the Rvest and Tidytext Packages
I am preparing to facilitate another session of the marketing course for the La Trobe University MBA. The first lecture delves into the definition of marketing. Like most other social phenomena, marketing is tough to define. Definitions of social constructs often rely on the perspective taken by the person or group writing the definition. As such...
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