dan crouch

464 posts

dan crouch

dan crouch

@djmcrouch

Genetics/Statistics/Evolution researcher

GSK เข้าร่วม Temmuz 2017
994 กำลังติดตาม193 ผู้ติดตาม
ทวีตที่ปักหมุด
dan crouch
dan crouch@djmcrouch·
In this short article I propose an alternative way to use P-values, for quantifying the probability of making an false-positive error in the future if one were propose that the alternative hypothesis was true based on the observed P-value pnas.org/doi/10.1073/pn…
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dan crouch
dan crouch@djmcrouch·
Interview with Yoav Benjamini. At around 5 minutes in he tells the story of how the False-Discovery Rate was published. It took 5 years of submissions and reviews, across three different journals, before it was accepted! m.youtube.com/watch?v=ZGU4Sl…
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dan crouch
dan crouch@djmcrouch·
Unlike traditional P-value interpretations, it provides an error rate that depends on the precise value of the observed P-value, but also does not require any Bayesian assumptions
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dan crouch
dan crouch@djmcrouch·
The approach is to compute the chance of incorrectly finding further evidence for the alternative hypothesis when the null hypothesis is true, so I call it the 'False Evidence Rate'
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dan crouch
dan crouch@djmcrouch·
In this short article I propose an alternative way to use P-values, for quantifying the probability of making an false-positive error in the future if one were propose that the alternative hypothesis was true based on the observed P-value pnas.org/doi/10.1073/pn…
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dan crouch
dan crouch@djmcrouch·
Something that happened to me a few times: a) design stats method, b) test on sims, c) worry for a long time when you notice it not performing perfectly, d) run 10x more simulations and realise the errors were noise Trust in frequentism: it works in the long run!
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dan crouch
dan crouch@djmcrouch·
In this paper we argue that, in light of Mendelian genetics, Natural selection is best conceptualised as a scientific law, rather than a theory. academia.edu/articles/10.20…
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dan crouch
dan crouch@djmcrouch·
@RuxandraTeslo My guess would be that this kind of unidentifiable 'normal' age-related decline is due to a large number of bengin tumours each inhibiting organ function a small amount. In aggregate, this results in decline in organ function, and this can probably occur across multiple organs
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Ruxandra Teslo 🧬
Ruxandra Teslo 🧬@RuxandraTeslo·
My great grandma died at 103 (a few yrs ago). She didn’t have any diagnosed condition of the kind that usually take away the life of old ppl. No cardiovascular disease, no cancer. It’s hard to say why she died, it seems like her body simply entered a state of generalised failure in the last 6 months of her life. A sort of “wasting away”. If we managed to avoid getting cardiovascular disease, cancer and maybe diabetes/ dementia, we’d end up probably all living to > 95 or so. But we’d still progressively lose function in the way my great grandma did. I think the task of ageing science is to isolate what this “progressive loss of function” actually means, independently of full blown cancer, CVD and/or dementia. Although this loss of function certainly predisposed to the above mentioned diseases, it’s something independent and upstream.
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dan crouch รีทวีตแล้ว
Richard Dawkins
Richard Dawkins@RichardDawkins·
Whatever your historically based political sympathies, if you have even a shred of human decency you surely cannot morally justify Saturday's barbaric attacks on innocent civilians. “A plague o’ both your houses” is, for once, inappropriate.
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dan crouch
dan crouch@djmcrouch·
@TivadarDanka Great thread but this is rather loaded Frequentist estimations are not just 'enough' in some situations, they are arguably superior
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Tivadar Danka
Tivadar Danka@TivadarDanka·
The single biggest argument about statistics: is probability frequentist or Bayesian? It's neither, and I'll explain why. Buckle up. Deep-dive explanation incoming.
Tivadar Danka tweet media
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dan crouch
dan crouch@djmcrouch·
@jonatanpallesen This boils down to the anthropic principle. I've not thought of anything convincingly pro or against anthropic arguments (i.e. answering 'no' to your survey question), but intuitively they often seem reasonable to me.
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Jonatan Pallesen
Jonatan Pallesen@jonatanpallesen·
If humanity survives and spreads into space, in the future there will be a lot of humans. There is an argument that goes like this: In this scenario, we would be among the first 0.001% first humans to exist. But it is a priori unlikely that we randomly happen to be among such a unique, tiny group. Therefore, from this alone, we can conclude that it is unlikely that this scenario will occur in the future. Do you think this argument is correct?
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Irina Stefana
Irina Stefana@irina_stefana·
Do you work in biomedical #research? Do you also question your #antibodies? Dodgy antibodies waste time & $$$ + drive the reproducibility crisis. Let's talk about it! We've validated >50❗️Tau antibodies: rb.gy/jf247 Here's what we learnt & why it matters A 🧵 1/n
Irina Stefana tweet mediaIrina Stefana tweet media
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dan crouch
dan crouch@djmcrouch·
@vsbuffalo Another related error: Science is affected by the politics of scientists -> science cannot be fully apolitical -> science should be fully political
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Vince Buffalo
Vince Buffalo@vsbuffalo·
I see this endless conflation between (1) science is not affected by the politics of scientists with (2) science ought not be affected by the politics of scientists. The former is a false statement. The latter is an argument about how science should operate.
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@vfsglobalcare
@vfsglobalcare@vfsglobalcare·
@djmcrouch Hi Dan, please clear the cache, cookies & browser history. Restart the system and try again after 30 minutes. Highly recommended browsers - Mozilla Firefox and Google Chrome. However, if you're still facing any issue, connect with us via DM. twitter.com/messages/compo…
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dan crouch
dan crouch@djmcrouch·
@VFSGlobal We are having difficulty arranging two visa appointments at the Cebu UK visa centre. Whenever I select a free appointment time and progress to payment I get the message...
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