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
Inscrit en janvier 2017
154 Photos et vidéos Photos et vidéos

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  1. a retweeté
    il y a 19 heures

    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 réponse 3 Retweets 17 j'aime
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  2. il y a 16 heures

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

    En réponse à @RogueRad @f2harrell et 6 autres
    Topic created here:
    3 Retweets 9 j'aime
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  3. a retweeté
    19 déc.

    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 réponses 28 Retweets 135 j'aime
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  4. a retweeté
    il y a 23 heures

    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.

    4 réponses 71 Retweets 233 j'aime
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  5. a retweeté
    17 déc.

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

    4 Retweets 17 j'aime
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  6. a retweeté
    17 déc.

    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 Retweets 3 j'aime
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  7. 17 déc.

    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 Retweets 10 j'aime
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  8. a retweeté
    17 déc.

    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 réponse 17 Retweets 78 j'aime
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  9. a retweeté
    16 déc.

    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
    3 712 réponses 32 251 Retweets 76 942 j'aime
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  10. a retweeté
    15 déc.

    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 réponses 53 Retweets 105 j'aime
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  11. a retweeté
    14 déc.

    "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 réponses 5 246 Retweets 8 712 j'aime
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  12. a retweeté
    14 déc.

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

    Lindsey Graham: I’m fine with Trump "lying about sex"
    7 712 réponses 34 259 Retweets 179 391 j'aime
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  13. a retweeté
    14 déc.

    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 réponses 231 Retweets 814 j'aime
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  14. a retweeté
    13 déc.

    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 réponse 5 Retweets 2 j'aime
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  15. a retweeté
    12 déc.

    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 Retweets 1 j'aime
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  16. a retweeté
    12 déc.

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

    4 réponses 28 Retweets 98 j'aime
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  17. 12 déc.

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

    2 réponses 17 Retweets 53 j'aime
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  18. 11 déc.

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

    1 réponse 9 Retweets 29 j'aime
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  19. 11 déc.

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

    4 réponses 20 Retweets 127 j'aime
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  20. 11 déc.

    What the GOP stands for ...

    1 réponse 6 j'aime
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