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Pacific Island Hopping using R and iGraph

Use R as your travel guide and plan your next Pacific island hopping holiday with the igraph package. This code analyses flight routes and finds routes.

Digit fifth powers: Euler Problem 30

Euler problem 30 is another number crunching problem that deals with numbers to the power of five. Two other Euler problems dealt with raising numbers to a power. The previous problem looked at permutations of powers and problem 16 asks for… Continue Reading →

Visualising Water Consumption using a Geographic Bubble Chart

A geographic bubble chart is a straightforward method to visualise quantitative information with a geospatial relationship. Last week I was in Vietnam helping the Phú Thọ Water Supply Joint Stock Company with their data science. They asked me to create… Continue Reading →

Data Science for Water Utilities Using R

Data Science for Water Utilities will be a new book that explains how to use R to undertake analytics for problems typical to water utilities.

Euler Problem 29: Distinct Powers

Proposed solution to Euler Problem 29: Distinct Powers in the R language for statistical computing.

How Virtual Tags have transformed SCADA data analysis

This article describes how to use Virtual tags to analyse SCADA data. Virtual tags provide context o SCADA or Historian data by combining information from various tags with meta data about these tags.

The Ulam Spiral: Euler Problem 28

Proposed solution to Euler Problem 28 in the R language for statistical computing. What is the sum of the numbers on the diagonals in a 1001 by 1001 spiral?

Using the iGraph package to Analyse the Enron Corpus

Instructions on how to use R and iGraph to analyse the Enron email corpus. This article describes how to research relationships between employees.

Generating Quadratic Primes: Euler Problem 27

Solution to Euler Problem 27 using the R language. Find the product of the coefficients for the quadratic expression that produces the most primes.

The Viral Recurring Decimal: Euler Problem 26

Proposed solution to Euler Problem 26 in the R language. Find the value of d < 1000 for which 1/d contains the longest recurring decimal cycle.

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