Recent comments in /f/dataisbeautiful

hallese t1_jb4lbef wrote

Reply to comment by bippidyboppidyboo4u in [OC] USA Counties, change in median listing price for residential real estate on MLS (Multiple Listing System), February 2022 to February 2023 by michigician

Correct, although I think this is potentially a little misleading for two reasons. First, housing prices didn't start to feel the effects of higher interest rates until May or June of 2022. Decking Second, and this one is anecdotal, I live in one of these orange counties and the types of houses being listed have also changed in the last year. There's fewer people listing there 80-year-old craftsman houses, and a higher proportion of brand new McMansions on the market, but the total number of units is way down.

Edit: Speech-to-text somehow turned "second" into "decking".

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spicer2 OP t1_jb4hznt wrote

Reply to [OC] The most dominant athletics world records by spicer2

Tools used: Python, Excel

Source: IAAF Toplists

Methodology/other bits:

A question I’ve wondered for a long time is if there’s a good way to measure how dominant athletics records are between events. I remember reading once years ago that, with the help of some statistical trickery, Paula Radcliffe’s (now-broken) marathon world record was considered to be one of the most impressive human feats, up there with Bob Beamon’s long jump, but I never tracked down the original source or methodology behind it.

I’m sure most people here know what a z-score is but I’ll show my working for full transparency. It essentially tells you how many standard deviations from the mean a given score or “exceptional” a given score is. It’s really handy for letting you make comparisons across categories that use different measurements.

To be clear about the sample I used - I took the 100 best competitor’s times, not the 100 best times overall. So Usain Bolt’s score is gauged against Asafa Powell, Tyson Gay etc’s best times, not all of those and also his own. The main reason I did that was because I was most interested in how dominant the individuals were, not the times themselves.

On that note, I really like this chart as it shows just how good Usain Bolt was. I also like that it confirms the 100/110m hurdles is such a tight and unpredictable event where you don’t really get athletes that consistently sweep the board for medals, as you do in others.

PS: I gathered the data for this in January but sat on it for a bit, so some of this may be slightly out-of-date.

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zootayman t1_jb4d9e6 wrote

Reply to [OC] Distance to next train station in Germany by jarvum

another posting here a few months ago was of the rail systems in Europe, and Germany had the most (a real web) and the poster said it was because railroads in Germany were government-built for their big iron industry and construction make work projects in the late 1800s

https://old.reddit.com/r/dataisbeautiful/comments/uxgrg2/oc_railroads_in_europe_where_would_you_like_to_go/

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