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Bill Petti

@billpetti.bsky.social

Data and Decision Science. I used to do some baseball research. ⚾️🏑🥍📈 Creator: baseballr package for #rstats (https://billpetti.github.io/).

1,293 Followers  |  448 Following  |  8 Posts  |  Joined: 19.01.2024  |  2.2964

Latest posts by billpetti.bsky.social on Bluesky

The statement from the Friends of BLS, which is co-chaired by former BLS Commissioners appointed by Obama and Trump. bsky.app/profile/aaro...

01.08.2025 22:01 — 👍 230    🔁 42    💬 3    📌 1
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Trump, Claiming Weak Jobs Numbers Were ‘Rigged,’ Fires Labor Official

For months, people have been asking me whether I still trusted gov’t data. My answer was always the same: The stats agencies faced longstanding challenges, some of which Trump was making worse. But there was no sign of political meddling.
I can’t say that anymore.
www.nytimes.com/2025/08/01/b...

02.08.2025 00:08 — 👍 1735    🔁 525    💬 52    📌 26
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Latest installment of Kids are Great…

16.02.2025 15:00 — 👍 1    🔁 0    💬 0    📌 0

My goodness Statz. Never knew he had 3k in the minors.

22.01.2025 04:00 — 👍 1    🔁 0    💬 0    📌 0
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Exit Velocity: Modeling Average Maximum Athletic Effort | Baseball Prospectus A better way to look at average exit velocity.

Today, we explore an overlooked area: how to model average maximum athletic effort, skills at which athletes repeatedly try their hardest, resulting in a heavily left-skewed distribution. Hitting a baseball, throwing a football deep, a first serve in tennis ... examples are everywhere. 1/3

13.12.2024 15:41 — 👍 20    🔁 7    💬 3    📌 2

For those new to BlueSky and interested in FanGraphs writers -- or those who aren't, making this an odd choice -- I put together a FanGraphs starter pack of writers/editors who currently are staffers or contributors to the site.

go.bsky.app/Q1Dm1ED

20.11.2024 06:39 — 👍 239    🔁 32    💬 19    📌 1

Been a huge problem for me recently during the initial screening process. Honesty and thoughtfulness go much further.

11.12.2024 18:38 — 👍 3    🔁 0    💬 0    📌 0
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When you realize @jaysonst.bsky.social reads your research (@jeffwzimmerman.bsky.social)

www.nytimes.com/athletic/598... As Juan Soto embarks on $765M future, Ted Williams’ shadow lingers: Where could he end up?

11.12.2024 16:57 — 👍 1    🔁 0    💬 0    📌 0

So, Jim Albert was kind enough to share how to code the color palette in R:

baseballwithr.wordpress.com/2024/12/02/u...

cc: @billpetti.bsky.social

02.12.2024 16:31 — 👍 8    🔁 1    💬 0    📌 0
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Proud dad moment. Congrats to our eldest on her commitment to play lacrosse and continue her studies at Mount Saint Mary’s University

25.11.2024 13:32 — 👍 10    🔁 0    💬 0    📌 0
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Bernie Williams always had interesting one to me

14.11.2024 03:15 — 👍 1    🔁 0    💬 0    📌 0

Same partisan pattern has emerged since at least Obama

13.11.2024 13:13 — 👍 2    🔁 0    💬 0    📌 0

Here is my opinion on important #rstats accounts to follow.

go.bsky.app/8pYGwbP

It is very much a curated list by me, and reflects my own opinion. I will be adding to it as I discover more folks i think should be on the list.

23.10.2024 10:02 — 👍 35    🔁 18    💬 2    📌 5

Tore rib cartilage following a sneeze

11.11.2024 02:05 — 👍 3    🔁 0    💬 0    📌 0

Created a Baseball Analysis Nerds starter pack.

Very much a work in progress, please send me more suggestions, including yourself. (If I'm not familiar with the account, will help if they have an obviously analytics-slanted profile or posts on Blue Sky.)

go.bsky.app/GZjLuxK

10.11.2024 10:13 — 👍 103    🔁 45    💬 22    📌 5

@billpetti is following 20 prominent accounts