StatCan Web Maps

Welcome to the world of web mapping!

Jens von Bergmann

6 minute read

Not sure how long this has been live, but this morning fellow cancensus developer Dmitry flagged a new StatCan feature. Interactive thematic web maps. Essentially it enables users to choose from the a selection of 2016 census variables and map them. You can zoom and pan around, and select the aggregation levels to display the data at down to census tracts. And there is a option to download single variables as CSV.

Playing with Medians

Why overly focussing on medians is dangerous.

Jens von Bergmann

5 minute read

I want do a short post to gently remind people of pitfalls when overly relying on medians for understanding complex issues. Medians are useful because they take a complex distribution and break it down into a single, simple to understand number. This works well as long as this does not mask other aspects of the distribution that are important in the context it is used. A good example for the dangers of overly relying on medians is the “median multiple” metric that gets used a lot, the median dwelling value divided by the median household income in an area.

A First Look At Vancouver Housing Data

Making sense of the new census data.

Jens von Bergmann

7 minute read

The 2016 census data on housing got released yesterday. We had the data imported and available on CensusMapper by 10am yesterday morning, after a slight delay due to the 40GB SSD space on the server running out and requiring additional disk space to be mounted for the data import. Lots of people have already used CensusMapper to dive into the data, but I had only just now found some time to take a look myself.

Boomer Exodus?

Change in size of age groups vs net migration

Jens von Bergmann

8 minute read

The dire home affordability in Vancouver weights heavily on everyone’s mind and it seems like we reflexively try to explain everything that is happening, or that we think is happening, though that lens. After we seem to have thankfully left the meme that millennials are fleeing Vancouver behind, an article claiming that Vancouver’s middle-aged population is leaving keeps popping up in my Twitter feed. The data point in the story is that between 2006 to 2016 the City of Vancouver saw a 13% drop in the number of people in the 40 to 44 year age group.

VSB Vulnerable Students

Counting children in poverty by school catchment area.

Jens von Bergmann

8 minute read

Recently there was some discussion at my son’s school about the hot lunch program, and who should pay for those who need a subsidy. Which made me curious how that works. Here is what I learned. Student Vulnerability Before we can talk about the VSB meal program, we need to talk about student vulnerability. VSB’s program concentrates its resource where the need is highest. Schools get ranked into tiers depending on the proportion of vulnerable students and categories and resources get attributed by tier.