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ulrichatz.bsky.social
@ulrichatz.bsky.social
17 followers 72 following 14 posts
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ulrichatz.bsky.social
So confident, so wrong. I'm actually not sure why ChatGPT gets this basic #RStats behavior wrong.
Predict the output here: x <- c("a cat", "concatenate", "cat!") grep("\\bcat\\b", x, value = TRUE) character(0) Reason: in base R’s default regex engine, \b is a backspace, not a word boundary. So "\\bcat\\b" doesn’t match anything in x.
November 5, 2025 at 2:49 PM
ulrichatz.bsky.social
What is happening?

The newest and hottest 🫟 #emoji befuddles #AI.
Claude 🫟 description Copilot 🫟 description ChatGPT 🫟 description
May 18, 2025 at 2:48 PM
ulrichatz.bsky.social
NYT with the deep insights here. #tariffs
How to Protect Your Retirement Savings Now as Markets Plunge If you’re within five years of retiring, either before or after, you’re at your most vulnerable financially. Here are steps to weather the volatility. Work a Little Longer If you’re still working, putting off your exit date for a while will give you more time to save and shorten the number of years those savings have to last. “Working longer is a really powerful way to improve your retirement finances and get a spending plan back on track,” Dr. Pfau said.
April 4, 2025 at 1:24 PM