Want better colours for ggplot2? “Ggthemr” is an R package that provides new colour themes and also the specification of your own colour palettes. Change the look and feel of your ggplot2 plots in R with two quick commands! Beautiful figures await!
[Short version] The S3 ingestion script for Amazon applications provided by Logentries will not work for the gzip compressed log files produced by the Elastic Beanstalk log rotation system. A slightly edited script will work instead and can be found on Github here.[/Short Version] Logentries is a brilliant startup originating here in Dublin for collecting and …
AWS Elastic Beanstalk – Logging to Logentries & InsightOps from Python Read More »
Python Flask web pages can be asynchronously updated by your Python Flask server at any point without user interaction. We’ll use Python Flask and the Flask-SocketIO plug-in to achieve this in this tutorial.
FAST TRACK: There is some python code that allows you to scrape bike availability from bike schemes at the bottom of this post… SLOW TRACK: As a recent aside, I was interested in collecting Dublin Bikes usage data over a long time period for data visualisation and exploration purposes. The Dublinbikes scheme was launched in …
Self-Organising Maps Self-Organising Maps (SOMs) are an unsupervised data visualisation technique that can be used to visualise high-dimensional data sets in lower (typically 2) dimensional representations. In this post, we examine the use of R to create a SOM for customer segmentation. The figures shown here used use the 2011 Irish Census information for the …
Self-Organising Maps for Customer Segmentation using R Read More »
So you’ve been using ROS to record data from a robot that you use? And you have the data in a rosbag file? And you’ve spent a while googling to find out how to extract images, data, imu readings, gps positions, etc. out of said rosbag file? This post provides a tool to extract data …
CSV Data Extraction Tool for ROS bag files for Python, R, Matlab Read More »