Exercise

Building a Better Pop-up

With the paste0() function and a few html tags, we can customize our popups. paste0() converts its arguments to characters and combines them into a single string without separating the arguments.

addCircleMarkers(popup = ~paste0(name,
                                 "<br/>",
                                 sector_label))

We can use the <br/> tag to create a line break to have each element appear on a separate line.

To distinguish different data elements, we can make the name of each college italics by wrapping the name variable in <i></i>

addCircleMarkers(popup = ~paste0("<i>",
                                 name,
                                 "</i>", 
                                 "<br/>", 
                                 sector_label))

Instructions 1/3

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  • 1

    Clear the bounds and markers on the map stored in map.

  • 2

    Add circle markers with pop-ups that display both the institution name and sector.

  • 3

    Make the institution name in each pop-up bold.