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Visualise Water Consumption with a Geographic Bubble Chart
This article shows how to plot a geographic bubble chart to visualise water consumption. The data was obtained from Phú Thọ Water in Vietnam.
Project Euler 29: Distinct Powers
Solutions to Project Euler 29: How many distinct terms are in the sequence generated by a^b?
How Virtual Tags have transformed SCADA data analysis
International keynote at the Asset Data & Insights Conference in Auckland, 26 July 2017. Using virtual tags to create value from SCADA data.
Project Euler 28: Number Spiral Diagonals
Solutions to Project Euler 28: What is the sum of the numbers on the diagonals in a 1001 by 1001 spiral? Plus bonus Ulam Spiral.
Using the iGraph package to Analyse the Enron Corpus
Instructions on how to use R and iGraph to analyse the Enron corpus. The Enron corpus gives detailed insight into how employees communicate.
Project Euler 27: Quadratic Primes
Solutions to Project Euler 27 in the R language. Code to find the quadratic expression that generate the most prime numbers.
Project Euler 26: Reciprocal Cycles
Solutions to Project Euler 26: Find the value of d<1000 for which 1/d contains the longest cycle in its decimal fraction part.
Project Euler 25: Fibonacci number with 1000 digits
Solutions to Project Euler 25 in the R language. What is the first Fibonacci number with 1000 digits?