Clustering

17 posts
Getting into the heads of the chart designer

When I look at this chart (from Business Insider), I try to understand the decisions made by its designer - which things are important to her/him, and which things are less important. The chart shows average salaries in the top 2 percent of income earners. The data are split by gender and by state. First, I notice that the designer chooses to use the map form. This decision suggests that...

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Making people jump over hoops

Take a look at the following chart, and guess what message the designer wants to convey: This chart accompanied an article in the Wall Street Journal about Wells Fargo losing brokers due to the fake account scandal, and using bonuses to lure them back. Like you, my first response to the chart was that little has changed from 2015 to 2017. It is a bit mysterious the intention of the...

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Making the world a richer place #onelesspie #PiDay

Xan Gregg and I have been at it for a number of years. To celebrate Pi Day today, I am ridding the world of one pie chart. Here is a pie chart that is found on Wikipedia: Here is the revised chart: It's been designed to highlight certain points of interest. I find the data quite educational. These are some other insights that are not clear from the revised chart:...

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Charting all the Pokemon

Pokemon is everywhere these days. I think it’s just something the world really needs right now. I know very little about the universe, but I do like it when people analyze fictional worlds and characters. Joshua Kunst grabbed a data dump about all the Pokemon (seriously, I don’t even know if I’m referring to them/it/thing correctly) and clustered them algorithmically. The t-Distributed Stochastic Neighbor Embedding (t-SNE) algorithm to be specific....

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Showing three dimensions using a ternary plot

Long-time reader Daniel L. isn't a fan of this chart, especially when it is made to spin, as you can see at this link: Like other 3D charts, this one is hard to read. The vertical lines are both good and bad: They make the one dimension very easy to read but their very existence makes one realize the challenges of reading the other dimensions without guidelines. This dataset allows...

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Enhanced tables, and supercharged spreadsheets with in-cell tech

Old-timer Chris P. sent me to this Bloomberg article about Vanguard ETFs and low-cost funds (link). The article itself is interesting, and I will discuss it on the sister blog some time in the future. Chris is impressed with this table included with the article: This table indeed presents the insight clearly. Those fund sectors in which Vanguard does not compete have much higher costs than the fund sectors in...

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