The Devil is in the Data

The Devil is in the Data is a blog about practical and fun data science in the R language by Dr Peter Prevos. This website goes beyond the hype, given that 99.9% of problems can be solved without machine learning. Good data science is:

  • Useful: Increases value.
  • Sound: Valid, reliable and reproducible.
  • Aesthetic: Easy to understand.

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Solutions to Project Euler 29: How many distinct terms are in the sequence generated by a^b?
Project Euler 29: Distinct Powers
Solutions to Project Euler 29: How many distinct terms are in the sequence generated by a^b?
Data Science
Project Euler RStats
International keynote at the Asset Data & Insights Conference in Auckland, 26 July 2017. Using virtual tags to create value from SCADA data.
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.
Data Science
Hydroinformatics RStats
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.
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.
Data Science
Project Euler RStats
Instructions on how to use R and iGraph to analyse the Enron corpus. The Enron corpus gives detailed insight into how employees communicate.
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.
Data Science
RStats Digital Humanities
Solutions to Project Euler 27 in the R language. Code to find the quadratic expression that generate the most prime numbers.
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.
Data Science
Project Euler RStats
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 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.
Data Science
Project Euler RStats
Solutions to Project Euler 25 in the R language. What is the first Fibonacci number with 1000 digits?
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?
Data Science
Project Euler RStats
Solutions to Project Euler 24 in the R language: What is the millionth lexicographic permutation of the digits zero to nine?
Project Euler 24: Lexicographic Permutations
Solutions to Project Euler 24 in the R language: What is the millionth lexicographic permutation of the digits zero to nine?
Data Science
Project Euler RStats