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
Geregistreerd in januari 2017
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  1. heeft geretweet
    19 uur geleden

    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 antwoord 3 retweets 17 vind-ik-leuks
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  2. 16 uur geleden

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

    Als antwoord op @RogueRad @f2harrell en 6 anderen
    Topic created here:
    3 retweets 9 vind-ik-leuks
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  3. heeft geretweet
    19 dec.

    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 antwoorden 28 retweets 135 vind-ik-leuks
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  4. heeft geretweet
    23 uur geleden

    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 antwoorden 71 retweets 233 vind-ik-leuks
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  5. heeft geretweet
    17 dec.

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

    4 retweets 17 vind-ik-leuks
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  6. heeft geretweet
    17 dec.

    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 vind-ik-leuks
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  7. 17 dec.

    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 vind-ik-leuks
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  8. heeft geretweet
    17 dec.

    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 antwoord 17 retweets 78 vind-ik-leuks
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  9. heeft geretweet
    16 dec.

    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 antwoorden 32.251 retweets 76.942 vind-ik-leuks
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  10. heeft geretweet
    15 dec.

    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 antwoorden 53 retweets 105 vind-ik-leuks
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  11. heeft geretweet
    14 dec.

    "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 antwoorden 5.246 retweets 8.712 vind-ik-leuks
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  12. heeft geretweet
    14 dec.

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

    Lindsey Graham: I’m fine with Trump "lying about sex"
    7.712 antwoorden 34.259 retweets 179.391 vind-ik-leuks
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  13. heeft geretweet
    14 dec.

    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 antwoorden 231 retweets 814 vind-ik-leuks
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  14. heeft geretweet
    13 dec.

    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 antwoord 5 retweets 2 vind-ik-leuks
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  15. heeft geretweet
    12 dec.

    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 vind-ik-leuk
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  16. heeft geretweet
    12 dec.

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

    4 antwoorden 28 retweets 98 vind-ik-leuks
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  17. 12 dec.

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

    2 antwoorden 17 retweets 53 vind-ik-leuks
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  18. 11 dec.

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

    1 antwoord 9 retweets 29 vind-ik-leuks
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  19. 11 dec.

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

    4 antwoorden 20 retweets 127 vind-ik-leuks
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  20. 11 dec.

    What the GOP stands for ...

    1 antwoord 6 vind-ik-leuks
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