Charting North Korean Provocations. A Case of ‘The Mondays’?

By Matt Stiles | | Topics: News, South Korea

As a newspaper reporter living in South Korea, I’m always aware that a “provocation” by our friends in the North — a missile launch, a nuclear test, or some other incident — could occur on any day.

A recent missile launch came on a Sunday morning, for example, disrupting our family plans. (That’s part of the job, of course).

But which days have been more likely for provocations, I wondered? Thanks to a handy database from the Center for Strategic & International Studies, we now know.

Since 2001, North Korean leaders seem to prefer … Mondays?

The trend is clear in the data: Compared with any other day, provocations have been twice as common on the first work day of the week.

The data also reveal some interesting tidbits about the North’s provocations. Thanks to a recent surge in missile tests, the number of provocations has increased substantially under the new leader, Kim Jong Un, who took power in late December 2011 after the death of his father, Kim Jong Il:

The Center categorizes the provocations by type, too (though I broke our “exchange of fire” incidents from “Other” in the data):

And here you can see the interest in missile tests. Roughly half of all provocations since 2001 have been missile launches or tests (again, propelled in part by Kim Jong Un’s recent interest):

You can explore the Center’s great work here.

Mapping Opposition to the GOP Health Care Bill by Congressional District

By Matt Stiles | | Topics: Demographics, Policy & Politics

The legislative failure of the GOP’s replacement for Obamacare has been widely reported, obviously, but I remain interested in one bit of polling noted this week by FiveThirtyEight.

The polling firm YouGov estimated the legislation’s unpopularity by congressional district. The bill itself was quite unpopular, it turns out, even in conservative districts, as FiveThirtyEight’s Nate Silver reported.

Thanks to DailyKos Elections, we can also marry the data with President Donald Trump’s vote share in each district.

I’ve been experimenting with maps in D3.js, and I hadn’t yet tried congressional districts. So this seemed like a perfect opportunity, even if thematic maps aren’t particularly useful in this context (because congressional districts vary in size geographically, such maps can be misleading).

Case in point: The national map of congressional districts, with Republicans in red and Democrats in blue . As we all know, Democratic districts tend to be smaller in terms of area and clustered in more densely populated places. So they don’t get a particularly fair representation on a map:

Consider these two treemaps. This first shows members of the U.S. House by party (with some vacancies in gray). Shapes are sized based on the average population of each congressional district: roughly 710,000 people, give or take five percent. The House has 237 Republicans, 193 Democrats and five vacancies. There’s clearly a red majority, but it’s relatively close:

This treemap, however, shows the geographic area in square miles. Now you see the distortion:

OK, you get it. So let’s see how the health care opposition looks on maps.

Charting South Korean Attitudes About Park Geun-hye’s Impeachment

By Matt Stiles | | Topics: News, South Korea

It’s been a busy few days of reporting in South Korea.

The scandal-plagued president, Park Geun-hye, was removed from office on Friday over a corruption scandal that has roiled politics and business in the country during the last six months.

Last night, two days after a court’s ruling to remove her, Park finally left the presidential complex.

The public overwhelmingly supported Park’s ouster, even if the disgraced leader wasn’t the source of all their concerns.

As one might expect, opinions about whether the former president should have been impeached vary by age and region. Here are the results of a recent survey by Gallup Korea.

First, age (the youth led the way):

And region (note that Daegu, in the southern part of the country, is Park’s home turf):

“The Highs and Lows of President Trump’s Job Approval”

President Trump heads into his first address to Congress with the lowest job approval of any chief executive since Dwight D. Eisenhower, when Gallup began tracking the initial months of a president’s term. Mr. Trump’s record-low approval rating is because of high disapproval among Democrats and independents, but masks the considerable satisfaction Republicans feel with his presidency so far.

Read more at: www.nytimes.com

Charting NICAR Attendance, Over the Years

By Matt Stiles | | Topics: News

Next week is the Investigative Reporters and Editors annual CAR convention — the gathering of news nerds from across the world to discuss the latest and greatest in data journalism. This year NICAR, as its known among the nerds, is in Jacksonville, Fla.

After attending each year since 2006, I had to skip the convention in 2015 and 2016 because I now live in Seoul. But I’m making the long journey to Florida this year, and I wanted to know how many people would be there.

The fine folks at IRE graciously shared historical attendance data with me:

(I’ll be using this data, by the way, for our demonstration session on NPR’s dailygrapics rig — the visualization tool I use for this blog).