The Pie-Doughnut Combination: A Radial Treemap

I stumbled into this graph some years ago, while looking up data for a project on US Auto Sales, through a post in Neoformix - Discovering and Illustrating Patterns in Data. So, when I started making the list of Pie-Doughnut combination charts, I decided to include this variety and use it to display survivors and victims of the Titanic tragedy in its centenary year.

It is not a particularly difficult chart to create, especially if one sets up the table properly. My first attempt brought me this:

I thought a lot over whether to keep the statistics as labels for the outermost doughnut that displayed the survivor/victim proportions. They get a bit muddled up around the first-class women and children's section and the inability to add leader lines to the doughnut labels meant they couldn't be dragged away and the lines used as pointers.

Here is the chart with the stats on display:

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Florence Nightingale Circumplex Chart

I was taken to the Florence Nightingale's Wiki page during a recent research, and one of the interesting things I noted was her contribution to statistics. It came to me as a pleasant surprise that she is credited with inventing the polar area diagram , or occasionally the Nightingale rose diagram, which is equivalent to a modern circular histogram. Following the completion of my project and in my weekend to spare, I devoted time to recreating the chart in Excel. It took a combination of Doughnut-Pie-and XY charts and close to four hours to finish it. The colours are a bit darker, the values are approximate and the labels differently oriented, yet the chart looks fairly close to the original as is shown by the picture below.

The Cricket Graphs: The Forgotten Chart

The fun of receiving feedback to blog posts is that one isn't quite sure what they might come up against. While mostly it provides fascinating discussions, insightful comments or explanatory questions, there is also the odd occasion when it throws up unusual requests. The other day I received an email in response to my post, The Cricket Graphs . The sender wanted me to create a "Partnership" chart, which would show the runs scored by the pair of batsmen for every wicket and the balls faced. I went searching for data on the Cricinfo website , and picked out the 3rd ODI between the South African and Australian cricket teams which was played out in Kingsmead, Durban on October 28, 2011. The Partnership details were taken from the page titled Partnerships Table and the total balls faced by individual batsmen from the Scorecard. Constructing the graphs was a somewhat tricky affair, with two potential bar charts in two axes representing Balls and Runs, which had me w...

The Cricket Graphs

Everyone in India is crazy about cricket. International cricket to be exact. This passion was triggered by a freak World Cup Championship win in 1983, and its dominance in India has continued unabated since. Of late, successful triumphs in T20 World Championship, The ICC Test Rankings, IPL and most recently, the ICC World Cup 2011 has taken support for the game in India through the roof. However, this post is not about the ascendancy of cricket in India. It takes to the various types of graphs we see in the telly to help us further analyze the game. Commentators have given them colourful names. The two most notable and common are "The Manhattan", which is the column graph, and "Worm" - which is the line chart. I didn't have the time to look up official India and Australian sides, nor the details of an official match between them. I knew a 50 over per-side match will be too bulky to create as a dashboard chart, so I zeroed in on a 20 ov...

Somnath's Excel Charts

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