« The tweeting crowd | Main | The Book »



That's superb. It would be great to see the NYT do something like this on their web site, with interactive capability such that when you mouse over a line or a state, the line and state are both highlighted.

Hadley Wickham

Dan Carr coined the named "linked micromap plots" for this type of display. You can read more at: http://mason.gmu.edu/~dcarr/lib/v9n1.pdf


Hi Hadley,
I did put that reference in my code, and since linked micromaps certainly aren't my idea, should probably be referenced in the post somewhere ;)
I just wanted to see if I could do it in R "easily". and it seemed like the right approach for this data.


There are now two R packages to make linked micromaps. The package micromapST can be used to summarize statistical and spatial data by U.S. states. The package micromap can be used to summarize data over different polygons, or areal units,such as watersheds, ecoregions, etc.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)


Link to Principal Analytics Prep

See our curriculum, instructors. Apply.
Marketing analytics and data visualization expert. Author and Speaker. Currently at Columbia. See my full bio.

Book Blog

Link to junkcharts

Graphics design by Amanda Lee

The Read

Good Books

Keep in Touch

follow me on Twitter