this post was submitted on 03 Oct 2024
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Data is Beautiful

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The image is from a Washington Post article which took the data from an interesting research paper titled Who Pays For Your Rewards? Redistribution in the Credit Card Market.

The research paper is a good read. (A free PDF of the whole paper is available at the link.) It examines how the use of rewards credit cards results in a massive wealth transfer from low-credit-score customers to high-credit-score customers:

We estimate an aggregate annual redistribution of $15 billion from less to more educated, poorer to richer, and high to low minority areas, widening existing disparities.

The Washington Post article attempts to frame the clear north-south split as a result of healthcare issues in This map looks too similar to maps of poverty and education, and we know health correlates strongly with both of those issues.

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[–] [email protected] 0 points 1 month ago (3 children)

Interesting data but I hate this map. The colours are nonsensical as are the categories

[–] [email protected] 0 points 1 month ago

I like the colors. Much nicer than typical colourscales

[–] [email protected] 0 points 1 month ago (1 children)

Yea who the fuck designed this color scheme. And the data points being so....random? Why not go by 50 or 100...

[–] [email protected] 0 points 1 month ago (1 children)

Could be a choice to reflect the distribution of different scores. I can't imagine credit scores are a very linear distribution.

[–] [email protected] 0 points 1 month ago* (last edited 1 month ago) (1 children)

It also doesn't go low and high enough. The first and last category should show everything below and everything above respectively.

I mean a 687 credit score isn't ideal but it's far from how bad it can get.

[–] [email protected] 0 points 1 month ago

It's showing averages. Just because certain scores are possible for an individual doesn't mean there's a district somewhere with that average score.

My credit score is not shown here because there is no district with that average score.

[–] [email protected] 0 points 1 month ago (2 children)

Maybe they're more color-blind friendly than the typical red-green scale? Idk, it's just a guess as to why these colors were chosen.

[–] [email protected] 0 points 1 month ago (1 children)

For fully color blind people I wished they could just do black to white with shades of gray in between.

[–] [email protected] 0 points 1 month ago (1 children)

There are colour scales that combine colours and intensities consistently, so that if you discard (or can't percieve) colour information, you still get a nice black to white scale. For a moment, I though the map used cviridis scale, which has this property and is designed to look as similar as possible to people with various variants of colour blindness. But then I realised that the scale used here has the brightest point in the middle, not on one side.

[–] [email protected] 0 points 1 month ago

It doesn’t work well for someone with achromatopsia.

[–] [email protected] 0 points 1 month ago (2 children)

As a red green colourblind person this map looks awesome and the contrast is excellent

[–] [email protected] 0 points 1 month ago (1 children)

How about red and blue, would that look good to you? Because I make lots of data graphs and I often go for red and blue. Sometimes red and green I must admit. But mostly red and blue when using a two color scale.

[–] [email protected] 0 points 1 month ago* (last edited 1 month ago) (1 children)

So most of the time I struggle to identify purple as a colour that is distinct from blue. I think the biggest thing to help anyone see it would be the contrast in values, ie use a light bright red and a deep dark blue as the extreme values so that even someone with monochrome vision could see the difference. This is all just a guess though, when I struggle the most is with dark and desaturated colours where there just isn't a ton of information. With bright colours in good lighting telling purple from blue or bright green from yellow gets a lot easier.

Eta: there are a bunch of colour blind filters you can do on the computer, you could run your images through those to see what looks best

[–] [email protected] 0 points 1 month ago (1 children)

Thanks for your insights! I am not aware of people having monochrome vision though, is that a thing? I use a single-color scale when that is appropriate. But use blue and red often for positive and negative values respectively. No purple. Just shades of blue and shades of red.

[–] [email protected] 0 points 1 month ago

It's very rare.

[–] [email protected] 0 points 1 month ago