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
Unit: gener de 2017
154 fotos i vídeos Fotos i videos

Tuits

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  1. ha retuitat
    fa 19 hores

    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 resposta 3 retuits A 17 els agrada
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  2. fa 16 hores

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

    En resposta a @RogueRad @f2harrell i 6 més
    Topic created here:
    3 retuits A 9 els agrada
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  3. ha retuitat
    19 de des.

    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 respostes 28 retuits A 135 els agrada
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  4. ha retuitat
    fa 23 hores

    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 respostes 71 retuits A 233 els agrada
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  5. ha retuitat
    17 de des.

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

    4 retuits A 17 els agrada
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  6. ha retuitat
    17 de des.

    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 retuits A 3 els agrada
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  7. 17 de des.

    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 retuits A 10 els agrada
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  8. ha retuitat
    17 de des.

    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 resposta 17 retuits A 78 els agrada
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  9. ha retuitat
    16 de des.

    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 respostes 32.251 retuits A 76.942 els agrada
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  10. ha retuitat
    15 de des.

    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 respostes 53 retuits A 105 els agrada
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  11. ha retuitat
    14 de des.

    "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 respostes 5.246 retuits A 8.712 els agrada
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  12. ha retuitat
    14 de des.

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

    Lindsey Graham: I’m fine with Trump "lying about sex"
    7.712 respostes 34.259 retuits A 179.392 els agrada
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  13. ha retuitat
    14 de des.

    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 respostes 231 retuits A 814 els agrada
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  14. ha retuitat
    13 de des.

    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 resposta 5 retuits A 2 els agrada
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  15. ha retuitat
    12 de des.

    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 retuits A 1 li agrada
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  16. ha retuitat
    12 de des.

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

    4 respostes 28 retuits A 98 els agrada
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  17. 12 de des.

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

    2 respostes 17 retuits A 53 els agrada
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  18. 11 de des.

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

    1 resposta 9 retuits A 29 els agrada
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  19. 11 de des.

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

    4 respostes 20 retuits A 127 els agrada
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  20. 11 de des.

    What the GOP stands for ...

    1 resposta A 6 els agrada
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@f2harrell encara no ha tuitat.

Sembla que triga molt a carregar-se.

És possible que el Twitter hagi assolit el límit de capacitat o que experimenti una sobrecàrrega momentània. Torna-ho a provar o vés a l'estat del Twitter si en vols obtenir més informació.

    També et pot interessar

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