Blog Archives

Geocoding with ggmap and the Google API

October 9, 2018
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Geocoding with ggmap and the Google API

Some of the most popular articles on the Devil is in the Data show how to visualise spatial data creatively. In the old days, obtaining latitude and longitude required a physical survey, with Google maps, this has become a lot easier. The geocode function from the ggmap package extracts longitude and latitude from Google maps, … Continue reading "Geocoding...

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Flat Earth Mathematics in the R Language

September 1, 2018
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Flat Earth Mathematics in the R Language

I am soon embarking on a trip around the world to speak at the World Water Congress in Tokyo, visit family and friends in the Netherlands and some tourism in San Francisco. One of the workshops I am involved with is about Fake News in the water industry. Fake news and conspiracies are threatening western … Continue reading "Flat...

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Call Centre Workforce Planning Using Erlang C in R language

July 18, 2018
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Call Centre Workforce Planning Using Erlang C in R language

We all hate the experience of calling a service provider and being placed on hold for a very long time. Organisations that take their level of service seriously plan their call centres so that the waiting times for customers is within acceptable limits. Having said this, making people wait for something can in some instances increase the level of...

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Call Centre Workforce Planning Using Erlang C in R language

July 18, 2018
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Call Centre Workforce Planning Using Erlang C in R language

We all hate the experience of calling a service provider and being placed on hold for a very long time. Organisations that take their level of service seriously plan their call centres so that the waiting times for customers is within acceptable limits. Having said this, making people wait for something can in some instances increase the level of...

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Euler Problem 33: Digit Cancelling Fractions and Ford Circles

July 8, 2018
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Euler Problem 33: Digit Cancelling Fractions and Ford Circles

Euler Problem 33 takes us back to the world of fractions from our primary school days. Many kids hate and struggle learning about fractions but once you master... The post Euler Problem 33: Digit Cancelling Fractions and Ford Circles appeared first on The Lucid Manager.

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The Devil is in the Data is moving

July 4, 2018
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Dear readers, I have been consolidating my online presence and the Devil is in the Data blog has moved to the Lucid Manager website. This will be the last post on this domain and I hope to see you again... Continue Reading → The post The Devil is in the Data is moving appeared first on The Devil is in...

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Using R with Emacs and ESS

June 13, 2018
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Using R with Emacs and ESS

Emacs is the swiss-army chainsaw of software, the ultimate killer app. This article explains the basics of using R with Emacs and ESS. Continue reading → The post Using R with Emacs and ESS appeared first on The Devil is in the Data.

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Defining Marketing with the Rvest and Tidytext Packages

May 30, 2018
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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... Continue Reading → The post Defining Marketing with the Rvest and Tidytext Packages appeared first on The Devil is in...

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Laser Beams and Elliptical Billiards: Euler Problem 144

May 16, 2018
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Laser Beams and Elliptical Billiards: Euler Problem 144

This article provides a solution in the R language for Euler Problem 144: How many times does a laser bounce inside an elliptical mirror before the light beam exits it? We can use the solution to this problem to simulate elliptical billiard tables. Continue reading → The post Laser Beams and Elliptical Billiards: Euler Problem 144 appeared first on The...

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Qualitative Data Science: Using RQDA to analyse interviews

May 2, 2018
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Qualitative Data Science: Using RQDA to analyse interviews

How can R be used to conduct qualitative data science? An example analyses interviews with customer advocacy groups and regulators of water utilities using the RQDA package. Continue reading → The post Qualitative Data Science: Using RQDA to analyse interviews appeared first on The Devil is in the Data.

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