Data Viz Done Right

May 29, 2017

Makeover Monday: How Has Internet Access Changed Around the World?

11 comments
UPDATE: Thank you to Jamie Briggs for pointing out that I shouldn't have used the average internet users for the worldwide figures. I have changed it to a weighted average by year by including population stats for each country for each year.

For #MakeoverMonday week 22, Eva picked an interactive map from Knoema that shows internet access over time.

Click image for the interactive version

What works well?

  • Nice interactivity
  • Informative tooltips
  • Summary in the subtitle provides some context
  • Including a definition of an internet user
  • Highlighting on the timeline the block for the year you are seeing
  • Providing the context of "per 100 people"
  • Per 100 people makes it easy to understand because you can think of them like percentages

What could be improved?

  • Include a more engaging title.
  • Stoplight colors work ok for me, but not for the color-blind folks.
  • The color scale in this case makes anything below 75% look bad. Is that really the case? Isn't providing more access over the years more important?
  • Why are years without data included on the timeline?
  • Having to flick through the years prevents you from seeing the change over time.
  • Smaller countries get lost on filled maps
  • Needs more context

What were my goals?

  • Create something easy to understand
  • Only include 2010-2015 since those were the only reliably consecutive years
  • Eliminate countries without values for 2015
  • Allow the user to pick a country to spotlight
  • Be able to compare that to the worldwide average
  • Label the ends of the lines for context
  • Include a title with a summary of what happened between 2010 and 2015

With that, here's my Makeover Monday week 22 creation. Enjoy!

11 comments :

  1. Hi Andy,

    How did you manage to control the size of only the Country Match line?

    I'm trying to replicate your makeover, and, on the SUM(Internet users per 100 people) axis, I'm not being able to control separately the size of each Country line (in Detail) and the line of the Country Match... Whenever I mess up with the Size marks, the whole graph changes.

    Thanks

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  2. I reflexively used a map for my viz but looking at yours, it occurs to me that national policies more so than geography determines internet access. The map in this case doesn't add much information while adding a lot of noise. Very instructive!

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  3. Andy - how did you get the 'Worldwide' numbers?
    Would you mind sharing the values for each year?

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    Replies
    1. I used the avg of all countries. Not 100% accurate as it's not population weighted but thought it was close enough given each country it already weighted.

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    2. Oh, ok.

      I am confused though. Can you elaborate on how that is different from the averaging of percentages that you've been talking about?

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    3. You're right Jamie. I need to eat my own words. Correcting it now by including population weighting for the US numbers.

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    4. Oh, nice.
      I thought maybe I was really missing something about the weighting...

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    5. So now you've got me wondering how you pulled the population data in. I am not very experienced with Tableau...were you able to pull in a data source for population, and join on the country name?

      Or did you have to do an old fashioned manual process of merging the data?

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    6. You can download the workbook to see how I did it. Basically, I have a 2nd data source of population by country by year. I then blend to that in the calculation.

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    7. Very cool. Thanks.

      I tried to download yesterday, but had problems. I probably need to update my version of Tableau Public.

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