PSL Analysis from 2002 to Current Season

A guest post from Sbusiso Mkhondwane


I have been going back and forth for a while about doing some form of data analysis and sharing it. The first attempt was to collect the data for my car’s movement, from the locations I visited to the car’s speed. I have four years worth of data and in a tidier format. Part of the reason for wanting to do data analysis was the R language and the book. R appeared like a tool that allowes you to feel as if you are in control and it’s flexable. What do I mean here? Hadley Wickham once said something along these lines; “The different between R language and other languages: Programming languages provide contracts. These are the things you can do and these are the things you can’t do. In many programming languages that’s like a legal contract. It spells out explicitly like what you can do and can’t do, and things you can’t do there’s no way you can do them. While with R, it’s more like a contract between friends, like you really shouldn’t do this but if you really want to, you can go ahead and do it.”. Another plus for doing this is to improve my data science skill and hopefully get some useful advise from the R community. Continue reading “PSL Analysis from 2002 to Current Season”

The Hard Problem of Data Analytics in Africa

One of the attributes of really good technology is that it hides the complexity of what goes on in the background, while still being useful. Depending on how old you are, you may remember having to set up a TV by selecting UHF or VHF with a little switch and then slowly turning a dial until a picture appeared out of the fuzz. Then you’d adjust the “bunny ears” aerial, and twiddle the tuner again to see if you could make the image even better. Continue reading “The Hard Problem of Data Analytics in Africa”

Cities of Glass

I love the idea of real world, physical implementations of data visualisation. We spend so much time behind the screen that it is really easy to just ignore something new and move on. But when its IRL, you can look at it from different angles, you can touch it and just experience the data differently. This post on hyperallergic is of a glass sculpture by Norwood Viviano that shows the big cities of the world changing overtime. Continue reading “Cities of Glass”

Shazam’s huge São Tomé and Príncipe User Base

I had the pleasure of watching Cait O’Riordan speaking at last week’s Strata Hadoop in London. While she presented a fantastic talk, the one thing that struck me was a brief visualisation showing Shazam user activity around the world. Continue reading “Shazam’s huge São Tomé and Príncipe User Base”

Skirt Width vs Beard Frequencies

I do like a good graph about beards, but when it makes a correlation with other fashion items, its even better.  This lovely piece in The Atlantic covers beard length and general facial hair coverage as far back as accurate recordings go. As interesting as it is, this graph made it worth reposting: Skirt Width vs Beard Frequencies. Continue reading “Skirt Width vs Beard Frequencies”