From the Objects menu in the left-hand side, drag and drop Text to the lower half of the map. If you have not already done so, create a free Tableau Public profile page, or click the Sign In button to access your existing profile, then click the Create a Viz button in your browser, as shown in Figure 7.53.įigure 7.62: To place the legend on top of the map, make sure it is floating.įinally, let’s add a text block with data source underneath the map. In the Google Sheet, go to File > Download and select Comma-Separated Values (CSV) format to save the data to your local computer. Tableau Public recognizes many different types of geographic names (such as cities and nations), so we will rely on the tool to deal with any spelling issues and properly place all of them on the map. In our spreadsheet we removed rows for nations that did not report any data. Good maps often require cleaning up messy data as described in Chapter 4. Open the Healthcare Spending by Nation as Percent of GDP data in Google Sheets, which we downloaded from the World Bank.Let’s look at the steps involved to create a choropleth from Figure 7.52 in detail. Creating a map of total health spending per country would not be very meaningful, as larger nations tend to have larger economies, so we’ll base our map on the percentage of their economy that is spent on healthcare.įigure 7.52: Choropleth map of healthcare spending with Tableau Public. Remember that choropleth maps work best when we normalize the data to show relative, rather than absolute, numbers. In this section, we will create a choropleth map of healthcare spending per country as a percentage of their gross domestic product (GDP), as shown in Figure 7.52. #Install tableau public how toFurthermore, if you want to upload customized map boundaries, learn how to Create Tableau Maps from Spatial Files But Tableau Public cannot geocode street addresses by itself, so you’ll need to obtain their latitude and longitude with another tool, such as those described in the geocode section of Chapter 2. #Install tableau public isoTableau Public can create many different types of map for geographical place names or ISO codes it already recognizes, such as nations, states, counties, and airports. On the other hand, some people prefer Tableau Public because they’re already familiar with its interface. On one hand, Datawrapper gives you more control over interpolating data and shaping the appearance of color intervals in your choropleth map. We’re showing you how to create the same type of map with both tools, in order to show you the difference. Now let’s use the same tool to create an interactive choropleth map, and compare the process with the Datawrapper tool we learned in the prior section. We first introduced you to the free Tableau Public desktop application (for Mac or Windows) when building scatter charts and filtered line charts in Chapter 6.
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