Scientific Retractions

less than 1 minute read

Published: May 02, 2015

After reading the paper by Steen et al. (2013), I decided to have a play with the data published alongside it. Such an interesting topic deserved interactive plots, so I built some in Tableau.

You can see the results below:

Share on

Twitter Facebook LinkedIn

Preparing for and passing BCS Foundation Certificate in Business Analysis (v4)

less than 1 minute read

Published: March 05, 2023

Last week I passed the BCS Business Analysis Foundation exam. Preparation took me about a week, with a good deal of cramming over one weekend — though I'd already covered a lot of the material on an earlier project management... Read more

PostcodesioR 0.1.1 is on CRAN

5 minute read

Published: August 28, 2019

Introduction The latest stable version of my UK geocoder package has finally made it to CRAN . PostcodesioR is a wrapper for postcodes.io and it provides multiple functions to work with UK geospatial data. The package draws exclusively on open... Read more

Extracting pitch track from audio files into a data frame

1 minute read

Published: February 16, 2019

My task was to extract pitch values from a long list of audio files. Previously I'd used Praat and R for this, but looping in R was rather slow, so I went looking for another approach. I developed the following... Read more

Automatic splitting of audio files on silence in Python

1 minute read

Published: February 11, 2019

In my previous post , I described how to split audio files into chunks in R. This time I wanted to use Python to prepare long audio files (. mp3 ) for further analysis. The typical use case is splitting... Read more

Eryk Walczak