this post was submitted on 25 Sep 2024
301 points (96.9% liked)

Map Enthusiasts

3479 readers
42 users here now

For the map enthused!

Rules:

founded 2 years ago
MODERATORS
top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 66 points 1 month ago (1 children)

I like that they have to use median, because I'm often having to find examples of why you'd use that over mean. My wife for instance is over 5k miles from her mom, and I imagine that's true of most immigrants. So the skew is probably really, really strong if you didn't use a non parametric measure like the median.

In other words, I'm stealing this for my stats class.

[–] [email protected] 20 points 1 month ago (1 children)

I like using both. An average of say 300 miles with a median of 5 miles would show you that there is significant bias toward the lower end.

I'm not a statistician but that's my understanding of the two metrics

[–] [email protected] 7 points 1 month ago (1 children)

Yeah but you can't really do that with a map. In a table you could. A report would likely report both, but also differentiate groups because you don't usually want to report skewed data without explaining why.

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

I bet if go down to county or city level, you‘ll find differently colored areas such as cities relying on old steel, coal, textile economies. At least here in Germany I know areas where many people left their home areas in the 90ies. But that’s probably a geography lesson.

[–] [email protected] 2 points 1 month ago

Yup! And if you have the right dashboard you can usually drill down by location down to that level and even include those additional factors as an overlay. I used to do that using census and labor statistics data, and it is indeed very cool.

[–] [email protected] 29 points 1 month ago (1 children)

I live really close to my mom. She doesn't live near me tho :(

[–] [email protected] 11 points 1 month ago* (last edited 1 month ago)

My brain is trying hard to reconcile those two statements

Oh, shit, I connected the dots. I'm sorry

[–] [email protected] 27 points 1 month ago (2 children)

Coincidentally, 18 miles is almost exactly the maximum distance you can be from the sea and still be in Denmark.

Not advocating throwing your parents in the sea, just bragging about one of the advantages of living in a tiny country consisting mostly of sea and islands 😁

load more comments (2 replies)
[–] [email protected] 22 points 1 month ago (1 children)

Would be interesting to see the methodology on this, or to see how much it has changed since this was published, or to see it broken down at a county level.

[–] [email protected] 13 points 1 month ago (1 children)

I also want to see the median, mode, and quartiles... for the last 25 years. I wonder if the recent rise in individuals living with parents/relatives has had an influence.

load more comments (1 replies)
[–] [email protected] 14 points 1 month ago (4 children)

That’s insane.

I’d need to see the methodology. That’s just way too close.

[–] [email protected] 17 points 1 month ago* (last edited 1 month ago) (1 children)

Bruh, that's been the case for literally the entirety of human history. In fact, way closer.

Given how humans evolved, it's much crazier that so many people move hundreds and thousands of miles away from their families and support systems.

[–] [email protected] 5 points 1 month ago

If anything, you're underplaying it! Agriculture allowed us to stop moving. Not having to travel is what made civilizations

[–] [email protected] 9 points 1 month ago* (last edited 1 month ago) (2 children)

It makes some sort of sense imo. What the graph is essentially saying is that most people stay in the same city as their parents. An 18 mile rage around a house covers most of a city. It's probably thousands of people who live in the same neighborhood as their parents skewed by the handful that move out of their home city.

[–] [email protected] 14 points 1 month ago (3 children)

It's crazy to me. Maybe having bad parents has skewed my perspective.

[–] [email protected] 5 points 1 month ago (2 children)

Bad parents might have had an influence, but I had decent parents, and I still moved to the other side of the planet at 20. Do you think you would you have been happy, staying put? 'Cause me, I wouldn't do anything differently (well, a few things, but not related to my moving around).

[–] [email protected] 3 points 1 month ago

I loved my parents, but once I was on my own I was happy to live a few hours drive away.

load more comments (1 replies)
load more comments (2 replies)
[–] [email protected] 2 points 1 month ago

My city is 6 km across (3,7 miles)

load more comments (2 replies)
[–] [email protected] 14 points 1 month ago (1 children)
[–] [email protected] 20 points 1 month ago (1 children)

Hi, thousands of miles. Are you like, a hivemind of everyone named Miles or something?

load more comments (1 replies)
[–] [email protected] 13 points 1 month ago* (last edited 1 month ago) (2 children)

The median distance without anything else is worthless. The median only represents the "typical American" if we're working with some kind of bell curve, which can't be true since a sizable chunk of people still lives with their parents. For all I know 49% of people could be living with their parents and another 49% could have moved far away - the median still only shows a data point from the remaining 2% of people.

[–] [email protected] 5 points 1 month ago (1 children)

If the data is normally distributed (as in bell shaped), the mean and median will be the same. The problem is that the data is probably very skewed, so the median is probably a better representation of the central tendency than the mean. Also, it's incorrect to say it only represents 2% of people; it's more that every person is only represented by their position in the set. Quintiles, quartiles, and percentiles work the same way. I like to think of it as everyone being a single vote, unweighted by value.

That said, if you wanted another acceptable alternative, you can also remove all outliers and likely return the curve back to normal. The problem there is you'd probably be removing every immigrant, so you wouldn't be representing all Americans. Pros and cons, but given medians are almost only used to describe data and not analyze it, since it's not compatable with a lot of statistics. A real analyst would probably just dummy code immigration in a regression and provide coefficients for both groups, anyway.

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

That said, if you wanted another acceptable alternative, you can also remove all outliers and likely return the curve back to normal.

I'm not sure I would call that "acceptable." I would be more likely to call it "destroying the interesting features of the data."

load more comments (1 replies)
load more comments (1 replies)
[–] [email protected] 12 points 1 month ago (1 children)

I inherited my childhood home and I'm still over 1,600 miles away from my mother. But she preferred her own childhood home on the other side of the country and moved there as soon as she divorced my dad. I'm still very close with my mother. Just not... physically.

[–] [email protected] 3 points 1 month ago

1.4k miles checking in. But she was pissed at me for moving and took several years to stop with the "move back" jabs. But we're also close

[–] [email protected] 12 points 1 month ago (1 children)

And this is in 2015, after we'd recovered from the great recession but before the housing/rental market forced a lot of families back into multi-generational housing situations.

[–] [email protected] 4 points 1 month ago

Absolutely!

It's probably also not uncommon for people who can work from home to have moved outward to lower cost-of-living areas during this time, but I bet that pales in comparison to the increase of young adults living with their parents.

[–] [email protected] 10 points 1 month ago

Well…... You’re not wrong…. but she’s dead so she won’t be moving anywhere anytime soon

[–] [email protected] 9 points 1 month ago (1 children)

Does this factor in city dwellers? A lot of cities, you've got people that can't just up and move to the next town over like we can out here in the boonies. You move from some parts of NYC 18 miles away and still be in the same city, but still effectively be like moving to another town.

I'd be interested to see what would happen to the numbers if you split out cities at given population levels.

[–] [email protected] 5 points 1 month ago (2 children)

If you move 18 miles away from your mother and you're still in the same city, you're still 18 miles away from her...

load more comments (2 replies)
[–] [email protected] 7 points 1 month ago (2 children)

It would be interesting to scale this by population density

[–] [email protected] 4 points 1 month ago (1 children)

They mention a few major influences, and population density is one of them. In areas with more sprawl and land, it's more likely for people to drive longer distances. (This probably explains the Midwest and West)

They also mention poverty being a factor, where it's more common for families to live together, or very close, in order to help support each other. (so probably explains the South)

Another thing to consider is grandmothers helping when couples have young children. I bet if we overlayed a map of locations where people are more likely to have kids, we'd see a trend too.

load more comments (1 replies)
[–] [email protected] 7 points 1 month ago

Me: maps can be creative, but they can’t surprise me.

OP: hold my beer.

[–] [email protected] 6 points 1 month ago

Hmm. And it pretty much just varies with density, looks like. What is that in terms of mom's ranking on list of closest people?

[–] [email protected] 6 points 1 month ago (1 children)

Is this including people who live in the same house as their parents?

[–] [email protected] 3 points 1 month ago (2 children)

I would assume so. That would balance the people who live across the country from her.

load more comments (2 replies)
[–] [email protected] 6 points 1 month ago (2 children)

I am over 1,000 miles away from my Mom.

load more comments (2 replies)
[–] [email protected] 4 points 1 month ago
[–] [email protected] 4 points 1 month ago

true enough for me when she was alive. except college I think the farthest out I was like 16 miles. I mean same with my dad though.

[–] [email protected] 4 points 1 month ago

Thats right, im always there for your mom when she needs me :)

[–] [email protected] 3 points 1 month ago* (last edited 1 month ago)

Hmm, I live 3600 miles from mom. It sucks TBH.

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

Seems reasonable if you don't move to another city

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

Most Americans live within an hour of where they grew up, so I'm not surprised. I think it's bonkers, I mean there's so much more out there, but from my own friend group yeah I'm the only one who moved away

load more comments (1 replies)
[–] [email protected] 3 points 1 month ago

I can walk to my mom's house in about 12 minutes.

[–] [email protected] 3 points 1 month ago

Heavan is only 25 miles?

load more comments
view more: next ›