Articles by Peter Prevos

Writing academic articles using R Sweave and LaTeX

October 4, 2017 | Peter Prevos

One of my favourite activities in R is using Markdown to create business reports. Most of my work I export to MS Word to communicate analytical results with my colleagues. For my academic work and eBooks, I prefer LaTeX to produce … Continue reading → The post Writing academic articles using R ...
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Writing academic articles using R Markdown and LaTeX

October 4, 2017 | Peter Prevos

One of my favourite activities in R is using Markdown to create business reports. Most of my work I export to MS Word to communicate analytical results with my colleagues. For my academic work and eBooks, I prefer LaTeX to produce … Continue reading → The post Writing academic articles using R ...
[Read more...]

Pandigital Products: Euler Problem 32

September 20, 2017 | Peter Prevos

Euler Problem 32 returns to pandigital numbers, which are numbers that contain one of each digit. Like so many of the Euler Problems, these numbers serve no practical purpose whatsoever, other than some entertainment value. You can find all pandigital … Continue reading → The post Pandigital Products: Euler Problem 32 appeared first on ... [Read more...]

Pandigital Products: Euler Problem 32

September 20, 2017 | Peter Prevos

Euler Problem 32 returns to pandigital numbers, which are numbers that contain one of each digit. Like so many of the Euler Problems, these numbers serve no practical purpose whatsoever, other than some entertainment value. You can find all pandigital … Continue reading → The post Pandigital Products: Euler Problem 32 appeared first on ... [Read more...]

Analysing soil moisture data in NetCDF format with the ncdf4 library

September 6, 2017 | Peter Prevos

The netCDF format is popular in sciences that analyse sequential spatial data. It is a self-describing, machine-independent data format for creating, accessing and sharing array-oriented information. The netCDF format provides spatial time-series such as meteorological or environmental data. This article shows how to visualise … Continue reading → The post Analysing soil ...
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Analysing soil moisture data in NetCDF format with the ncdf4 library

September 6, 2017 | Peter Prevos

The netCDF format is popular in sciences that analyse sequential spatial data. It is a self-describing, machine-independent data format for creating, accessing and sharing array-oriented information. The netCDF format provides spatial time-series such as meteorological or environmental data. This article shows how to visualise … Continue reading → The post Analysing soil ...
[Read more...]

Pacific Island Hopping using R and iGraph

August 30, 2017 | Peter Prevos

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. Continue reading → The post Pacific Island Hopping using R and iGraph appeared first on The Devil is in the Data.
[Read more...]

Pacific Island Hopping using R and iGraph

August 30, 2017 | Peter Prevos

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. Continue reading → The post Pacific Island Hopping using R and iGraph appeared first on The Devil is in the Data.
[Read more...]

Digit fifth powers: Euler Problem 30

August 23, 2017 | Peter Prevos

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 → The post Digit fifth powers: Euler Problem 30 appeared first ...
[Read more...]

Digit fifth powers: Euler Problem 30

August 23, 2017 | Peter Prevos

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 → The post Digit fifth powers: Euler Problem 30 appeared first ...
[Read more...]

Visualising Water Consumption using a Geographic Bubble Chart

August 16, 2017 | Peter Prevos

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 → The post Visualising Water Consumption using a Geographic ...
[Read more...]

Visualising Water Consumption using a Geographic Bubble Chart

August 16, 2017 | Peter Prevos

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 → The post Visualising Water Consumption using a Geographic ... [Read more...]

Data Science for Water Utilities Using R

August 9, 2017 | Peter Prevos

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. Continue reading → The post Data Science for Water Utilities Using R appeared first on The Devil is in the Data. [Read more...]

Data Science for Water Utilities Using R

August 9, 2017 | Peter Prevos

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. Continue reading → The post Data Science for Water Utilities Using R appeared first on The Devil is in the Data.
[Read more...]

Generating Quadratic Primes: Euler Problem 27

August 2, 2017 | Peter Prevos

Solution to Euler Problem 27 using the R language. Find the product of the coefficients for the quadratic expression that produces the most primes. Continue reading → The post Generating Quadratic Primes: Euler Problem 27 appeared first on The Devil is in the Data. [Read more...]

How Virtual Tags have transformed SCADA data analysis

July 26, 2017 | Peter Prevos

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. Continue reading → The post How Virtual Tags have transformed SCADA data analysis appeared first on The Devil ... [Read more...]
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