Publications by Jo-fai Chow
Blend what?
Why?Over the years I have learned quite a few things about machine learning but I have never thought of writing them down properly. Too often I can’t figure out exactly what I did when I look at my old codes. The time is NOW!More importantly, I have fallen in love with the R programming language and the massive amount of useful packages from t...
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R, where should I start?
This is a dynamic post which I will continue to update whenever I find something new. Hope you will find the following links useful.Online Courses for Learning the R languageTry R from Code Schoole-Books for Learning the R LanguageR for Beginners by Emmanuel ParadisR Graphics by Paul Murrelggplot2 (official documentation)Online Courses for Data ...
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Learning-by-doing: my quest to master ggplot2 (part 1)
Your browser does not support iframes. Related To leave a comment for the author, please follow the link and comment on their blog: Blend it like a Bayesian!. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job. Want ...
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Colour it up: my quest to master ggplot2 (part 2)
Your browser does not support iframes. Related To leave a comment for the author, please follow the link and comment on their blog: Blend it like a Bayesian!. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job. Want ...
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Visualising Crime Hotspots in England and Wales using {ggmap}
Two weeks ago, I was looking for ways to make pretty maps for my own research project. A quick search led me to some very informative blog posts by Kim Gilbert, David Smith and Max Marchi. Eventually, I Google’d the excellent crime weather map example by David Kahle and decided to stick with the gg-style approach.Thanks to David K...
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Creating a Quick Report with knitr, xtable, R Markdown, Pandoc (and some OpenBLAS Benchmark Results)
To cut a long story short, I always wanted to write professional-looking documents (technical reports and potentially my thesis) with R codes. No more copy and paste. No more Microsoft Word. At the same time, I don’t feel comfortable with LaTeX. Somehow I found a workaround with knitr, xtable, R Markdown and Pandoc.I must say that my solution i...
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Introducing CrimeMap – A Web App Powered by ShinyApps!
A few months ago I did a mini project using open crime data and R to create crime visualisations. At that time, I was already thinking about a web app using Shiny but I couldn’t justify the time to develop the app and then set up a server etc. Not until two weeks ago when I received an invitation to join the alpha testing of ShinyApps.ShinyApps...
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CrimeMap, LondonR and a Book Review
In preparation for my LondonR talk in March, I am polishing up my CrimeMap (see previous blog post here and here) in my spare time.Thanks to Chris Beeley and Packt, I won a free e-copy of Chris Beeley’s book following his great talk about Shiny web app during the last LondonR meeting. I find this book really useful as I am trying to imp...
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Slidify my R journey from @matlabulous to rCrimemap
My LondonR TalkThanks to Mango Solutions (LondonR organiser), I was given the opportunity last night to talk about my mini project ‘CrimeMap’. Instead of going through all the technical details behind the scenes, I chose to talk the audience through my R journey from a noob to a heavy user. CrimeMap was used as a case study to show how on...
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The #rBlocks Experiments
What’s this ?Where should I start? OK, the story goes like this … rBlocks: A port of #ipythonblocks to #rstats http://t.co/iMMRPCxQIN @simplystats @gvwilson @hadleywickham pic.twitter.com/6LQmN4LZWM— Ramnath Vaidyanathan (@ramnath_vaidya) March 12, 2014 Colouring #rstats df with @ramnath_vaidya #rBlocks Iris revisited http://t.co/TFDDXGK7...
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