Frank Harrell

@f2harrell

Prof, Founding Chair of Biostatistics, Vanderbilt U. Expert Statistical Advisor, Office of Biostatistics, FDA CDER. Blog: Statistical Thinking -fharrell.com

Nashville, TN
biostat.mc.vanderbilt.edu/FrankHarrell
Na Twitteri od: január 2017
154 fotiek a videí Fotky a videá

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  1. Retweetol používateľ
    pred 19 hodinami

    1. Shut down 2. Jail key decision makers and possibly some of the engineers involved 3. Give the money back to the people it abused (its users) 4. Build ethical replacements for its useful bits

    1 reply 3 Retweety 17 Tweetov sa páčilo
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  2. pred 16 hodinami

    Glad that has restarted this hot discussion on datamethods. I just posted a response that tries to generalize the question.

    V odpovedi používateľom @RogueRad @f2harrell a 6 ďalším
    Topic created here:
    3 Retweety 9 Tweetov sa páčilo
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  3. Retweetol používateľ
    19. 12.

    Statistically, machine learning has poor modeling practices which should limit generalizability. It doesn't. Why? For tasks like image recognition, all humans on the ML team understand ground truth; in healthcare/science tasks, it won't be the same. We can expect lots of failure.

    9 replies 28 Retweetov 135 Tweetov sa páčilo
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  4. Retweetol používateľ
    pred 23 hodinami

    My Christmas present for the community: 2.7 is now on CRAN extending support for Gaussian processes and fixing a substantial performance bug in some post-processing methods among other new features and improvements.

    71 Retweetov 233 Tweetov sa páčilo
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  5. Retweetol používateľ
    17. 12.

    Please read—well worth your time. Challenges of Non–Intention-to-Treat Analyses | Research, Methods, Statistics | JAMA | JAMA Network

    4 Retweety 17 Tweetov sa páčilo
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  6. Retweetol používateľ
    17. 12.

    It's a big stretch to put such a positive spin on the wastage of resources that occurs when the scientific pathway is led astray building upon results that can't be replicated.

    “It’s not a replication crisis. It’s an innovation opportunity” Australian cancer researcher Glenn Begley about reproducibility and the meaning of failure in science
    2 Retweety 3 Tweety sa páčili
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  7. 17. 12.

    Glad to see questionable research practices elevated with respect to severity of harm to science

    Is it time for a new classification system for scientific misconduct?
    3 Retweety 10 Tweetov sa páčilo
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  8. Retweetol používateľ
    17. 12.

    A+ beautiful, a grand achievement by it is wonderful to see Byrne on clean background, all the original copies I saw over the years all had extensive foxing. In my Envisioning Information, we fully rebuilt 2 Byrne pages, hand-separated colors for printing.

    I recreated Byrne's 1847 edition of Euclid's Elements including interactive diagrams, cross references, and a new poster of all the original illustrations: Plus an in-depth blog post on how it was made:
    1 reply 17 Retweetov 78 Tweetov sa páčilo
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  9. Retweetol používateľ
    16. 12.

    Let me get this straight: Sears has $25 million laying around to pay out executives who ran the company into the ground, but doesn't have any money to give the thousands of workers they laid off severance pay?

    Sears bankruptcy court OKs $25 million in bonuses for top execs
    3 713 replies 32 251 Retweetov 76 942 Tweetov sa páčilo
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  10. Retweetol používateľ
    15. 12.

    Tonight’s ruling creates confusion, puts affordable health insurance at risk, and targets Americans with pre-existing conditions. The Supreme Court already upheld the law’s constitutionality — twice. Sign up tonight for 2019 coverage at .

    5 replies 53 Retweetov 105 Tweetov sa páčilo
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  11. Retweetol používateľ
    14. 12.

    "It took more than a half century to reach the point where faced with a choice between democracy and power, the party chose the latter," argues George Packer.

    325 replies 5 246 Retweetov 8 712 Tweetov sa páčilo
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  12. Retweetol používateľ
    14. 12.

    Didn’t he impeach Bill Clinton over the same thing?

    Lindsey Graham: I’m fine with Trump "lying about sex"
    7 712 replies 34 259 Retweetov 179 392 Tweetov sa páčilo
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  13. Retweetol používateľ
    14. 12.

    A couple days ago another team asked me to speak about Bayesian data analysis. I decided that instead of doing a nuts/bolts of how to fit/use Bayesian models, I would describe "Bayesian analysis: The Good Parts". <potentially controversial thread>

    17 replies 231 Retweetov 814 Tweetov sa páčilo
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  14. Retweetol používateľ
    13. 12.

    Not that this is terribly surprising, but still an important message for all to hear.

    0:38
    In the U.S., law enforcement officers kill more than 1,000 civilians each year. New research shows that people who live in states with high gun ownership are much more likely to be shot and killed by police than those in low-gun states
    1 reply 5 Retweetov 2 Tweety sa páčili
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  15. Retweetol používateľ
    12. 12.

    Invite others to submit their lists of prevalent faux-pas' compromising reliable evidence generation.

    Value-based Healthcare: analytics may be leaving value on the table
    2 Retweety 1 Tweet sa páčil
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  16. Retweetol používateľ
    12. 12.

    Hi everyone. It’s been awhile since I’ve had a good old-fashioned methods critique, but I'm feeling it today:

    28 Retweetov 98 Tweetov sa páčilo
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  17. 12. 12.

    Many Analysts, One Data Set – many conclusions - good discussion continues. Hope that joins in -

    17 Retweetov 53 Tweetov sa páčilo
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  18. 11. 12.

    Favorite way to picture probabilities: not with stick figures or frequencies but with a thermometer plot (example below is taken from )

    1 reply 9 Retweetov 29 Tweetov sa páčilo
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  19. 11. 12.

    Statistician take of the day: A $100 data analysis can make a $1,000,000 study worth $1,000.

    20 Retweetov 127 Tweetov sa páčilo
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  20. 11. 12.

    What the GOP stands for ...

    1 reply 6 Tweetov sa páčilo
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