Jonathan Spring

@jonlovett @jonlovett Here's how sunrise and sunset shift over the course of the year across the lower 48. Northern cities face a dramatic shift in daylight hours. DST keeps their sunrises <9am, but at the cost of early sunsets. Meanwhile, Phoenix DGAF.

@brikeilarcnn By the same logic, Republicans are responsible for this mess continuing because they provided 100% of the votes against the leading vote-getter.

GA GOP Rep. Austin Scott "absolutely" worries the Speakership mess will cost Republicans the majority, and says Democrats "created the current situation" - even though GOP has the majority and started this process.

@drob `extract` is new to me, that will be useful.

My #rstats solution to Day 3 of #AdventOfCode * I'm often disappointed that dplyr's between isn't vectorized on start/end- slowed me down a bit today! (FWIW, in dbplyr it *is* vectorized) * Otherwise, a straightforward application of extract and then some boolean logic

@drob (Day 4.) Nice!

@Andrew___Baker In 2022 or ever?

One last time before this app goes down in flames… on this first day of my 30th year, I ask for photos of your dogs 🥹

@GKountourides Here you’re saying you want z to control color. And you don’t want the default colors, you want the colors in my_col to be the colors that get assigned.

@gelliottmorris @elonmusk twitter.com/ketanj0/status…

@PhDemetri What if you are sipping a boba and a pearl gets stuck? Two holes now. ("but pearl != straw" yes but I'm playing by "glass half full" metonymy rules where object includes adjacent object it engages with)

“Does a straw have one hole or two?” Topologists have entered the chat.

@bernhardsson I’m looking for a good way to analyze annual memberships, where the membership is active for 12mo, and then the next gift renews it, but the next membership doesn’t go into effect until the last one expired. People look at T+15mo to eval renews but that leaves data on the table.

How do you measure churn when there’s no cancellation event observed? I was thinking you can fit a 3 state markov chain (active, inactive, dead) but I might be overthinking it.

@lenkiefer Cool! I took a look comparing not just to past calendar years but to the trajectory starting every month. The top matches start mid 1981. 3/4ths of them resulted in lower rates within the next 12mo. gist.github.com/jonspring/1bb7…

for a while, was using 1994, more recently 1981

running out of comparisons when talking about mortgage rates

@brodriguesco Subsettable closure

What’s some very #RStats specific jargon?

@caw_ @boscox3

@EdwardTufte I’m confused. Is there a mention of R or machine learning in the study? This sounds like they had many teams analyze some data to answer the same statistical research question and found that differences in researcher assumptions and approaches led to different conclusions.

Implicit in this thinking, and explicit in Governor Jerry Brown’s original reasoning for the HSR, is the idea that it is simply impossible to force LA and SF to build more housing, so the only way the people of the Valley could have opportunity is if we brought it there directly

@EamonCaddigan I used something like this for looking at aspect ratios of artworks in SFMOMA’s collection.

@mrworthington @sharon000 The new syntax allows non-equi joins, which I’m psyched about!

@sharon000 Thanks for writing, Sharon! Do you know if there’s an explanation for how the new syntax is better than “by = c( df1col = df2col)”? Or is the new syntax provided as an alternative?

@paulgp This is a clear, compelling result. The quadratic fit lines align with the data, but mechanistically seems counterintuitive for vax >50%. I wonder if the counties with the highest vax rates had other underlying characteristics (eg assisted living facilities) which elevated risk.

@JakeCordell To this point, it'd be relevant to know how many fewer people are returning than usual. ie if 4k cross the Georgia border on a normal day, perhaps also around 4k were coming back into Russia on a normal day. If only 2k are entering, that'd add another +2k to the net outflow.

A technicality to end on: not convinced it makes sense to only look at "excess" flows. How many regular (work/holiday) trips are taking place now? 4k cross the Georgian border on a normal day. Knowing there's a 48+ hour wait, some who can will likely be postponing (5/6)

What is the scale of the exodus from Russia? Some hashed together numbers: Just data from Russia's busiest land borders show at least 20,000 *extra* people per day are leaving the country since Putin announced mobilisation. (1/6) 📷 The Russia-Georgia border

@ArmandDoma @mosheroperandi @JoePostingg A bond ladder combines different maturities to give you higher yields than short term bonds and more liquidity than long term ones. investopedia.com/terms/b/bondla…

@mosheroperandi @JoePostingg Explain?

I have a lot of cash that I need to park in somewhere very low risk until I figure out where the hell I am going to live. What are like the best options here? Figure I should be able to find something decent with rising interest rates.