« Check out the Lifespan of News project | Main | Is the visual serving the question? »

Comments

Colin Fredericks

I don't think it's that immigration is monotonically increasing in this chart; I think it's that total immigrated population is always increasing. It's like the rings on a tree trunk. Since it's only measuring influx (additions) and not net flux (additions - subtractions), it doesn't need a way to show negative values.

Comparing current and past levels is real difficult, though. I think the ring at 2000 is larger than one of the rings at 1900, but I'm not certain.

Kaiser

CF: I agree that the chart shows only influx and therefore the data series is monotonically increasing, and so there isn't any problem with how the tree-ring design is used here.
Any comparison is challenging here: the same number of immigrants in two consecutive years will show up as two rings of different widths.

The comments to this entry are closed.

BOOTCAMP SUMMER '19



Link to Principal Analytics Prep

See our curriculum, instructors. Apply.
Kaiser Fung. Business analytics and data visualization expert. Author and Speaker.
Visit my website. Follow my Twitter. See my articles at Daily Beast, 538, HBR.

See my Youtube and Flickr.

Book Blog



Link to junkcharts

Graphics design by Amanda Lee

The Read



Keep in Touch

follow me on Twitter

Residues