Map

The map chart displays a place as a bubble on a map. Optionally, the bubble can be sized and colored by measures. Adding a slice with a map chart (i.e., a map slice) is a good choice when users want to see geographic information.

Adding a map slice

To add a map slice:

• select Map from the chart list

Select Map from the dropdown

• select the place column you want to display as a bubble on the map

• select a measure to use for the bubble size (optional)

• select a measure to use for the bubble color (optional)

• select a map style

• add slice text (optional)

A map slice

The map slice requires that you have a place column. A place column is a special type of column that has associated latitude and longitude fields.

Adding a map slice

Using a map slice

You can hover over a map bubble to see details. Selections made in the map slice will filter downstream slices.

Place column editor

A place column is a special kind of column that has an associated geographic location (i.e., latitude and longitude). A place column is required by the map chart, and you create a place column when you add a map chart to your data story.

Place columns are created when you add a map chart

To create a place column, your data will need three fields:

1. A field that represents the name of the geographic location (e.g., city, state, country)

2. A field with the latitude value for each location

3. A field with the longitude value for each location

The latitude and longitude fields in your data must be numbers, not strings. In other words, your latitudes should look like 38.8977 rather than 38.8977° N. Likewise, your longitudes should look like -77.0365, rather than 77.0365° W.