gbrown

74 ms·

691.
by gbrown 10y ago
If you're not ready to make the jump, the Volt gets to play electric car for most journeys, kicking over to being a fuel efficient hybrid for long ones. The Gen 1 is cheap right now, and gets around 42 electric miles in the summer, 35
692.
by gbrown 10y ago
https://en.wikiversity.org/wiki/Dummy_variable_(statistics)
693.
by gbrown 10y ago
You do not have the experience or expertise to justify your claims; a PhD thesis is in no way like doing a regular research project, or passing a course in university. The reason why failing a PhD thesis defense is rare is because your advi
694.
by gbrown 10y ago
I wonder if stories like this are why Skype is so completely broken on Linux. If it worked, far more people would be comfortable switching.
695.
by gbrown 10y ago
Yep, check out approximate Bayesian computing.
696.
by gbrown 10y ago
In some languages (e.g., R), the performance penalty for such code is enormous.
697.
by gbrown 10y ago
Probably some sort of growth model.
698.
by gbrown 10y ago
Binomial and Poisson regression can both be performed with non-canonical link functions, which sometimes provide a better fit or more interpretable results (see: canonical link for gamma regression).
699.
by gbrown 10y ago
The real explanation comes from the theory of generalized linear models: https://en.wikipedia.org/wiki/Generalized_linear_model
700.
by gbrown 10y ago
There are other nice properties. For example, because the logit link is canonical for the binomial GLM, inference about unknown parameters using it is based on sufficient statistics. It's certainly not the only option though, and not a
701.
by gbrown 11y ago
I think Statistics departments have lagged behind in teaching ML techniques as first class citizens of the statistical world, but also that ML folks tend to gloss over or ignore a lot of the benefits formal inference and statistical thinkin
702.
by gbrown 11y ago
The Precision M3800 is also a great 15" laptop for running Linux (but you can't trust them not to screw up the bundled Ubuntu distro, and need to write some systemd wifi-restart scripts).
703.
by gbrown 11y ago
Probably not, but I'll admit to not having dug into it too deeply. In my initial experiments, I found only modest speed gains when byte compiling. Then again, I'm already using C functions wherever possible.
704.
by gbrown 11y ago
Factors are great, and surprisingly powerful even outside of statistical computing. With that being said, I prefer to create them on purpose rather than having read.csv attempting to be helpful.
705.
by gbrown 11y ago
I don't think calling Luke an "agricultural statistician" is at all reflective of his work. Not everything in Iowa is corn, and Luke has been working in computationally intensive statistical methodology and statistical softwa
706.
by gbrown 11y ago
R does actually ship with the ability to byte-compile functions these days, and as that functionality matures it may become the default behavior. It's still better to actually learn the language; it's far easier to optimize someth
707.
by gbrown 11y ago
I believe that newer versions of OpenCL will benefit from Vulkan due to the mutual dependence on SpirV. My biggest hope is that this will finally reduce our reliance on out of date and buggy drivers to get OpenCL support on multiple platfor
708.
by gbrown 11y ago
Back when I was first learning to use git, I accidentally pushed a commit to my repo as the author of a set of dotfiles I'd cloned. It was a bit mortifying.
709.
by gbrown 11y ago
That's a fair point, but I'm not sure I understand the gist of the author's confusion. Any response I would craft would end up being a re-statement of the usual one sentence definition of p-values and Bayesian probability, bo
710.
by gbrown 11y ago
From the article: "We want to know if results are right, but a p-value doesn’t measure that. It can’t tell you the magnitude of an effect, the strength of the evidence or the probability that the finding was the result of chance."
711.
by gbrown 11y ago
It would also be helpful if they'd read the article.
712.
by gbrown 11y ago
Well, neither your description of p-values, nor your understanding of Bayesian inference is correct, so... no?
713.
by gbrown 11y ago
It looks like the C++ API is for executing graphs only, which is kind of odd.
714.
by gbrown 12y ago
Is that not already done?
715.
by gbrown 12y ago
He's also mixing up discrete and continuous probability distributions. He got pretty much the right answer, but as a statistician it kind of hurts to look at.
716.
by gbrown 12y ago
Your probability calculations are... non standard. Although you get the right answer, it's not correct to treat a discrete probability distribution like it's continuous. A more standard approach would be to calculate, for an appro
717.
by gbrown 12y ago
Possible stupid question: couldn't it be done outside? The machine is autonomous anyway...
718.
by gbrown 12y ago
Actually R0 is a measure which captures both population mixing activity and the infectiousness of the pathogen - the two processes are confounded. That means that it varies a lot over space and time.
719.
by gbrown 12y ago
If you'd followed the outbreak as you seem to claim, you will have seen that they succeeded to a large extent in Guinea, but the subsequent spread to other areas overwhelmed their capacity quickly, and that efforts to contain the sprea
720.
by gbrown 12y ago
We're talking about a region with more than 20 million people, and recent research indicates that the disease may become endemic rather than burning itself out. Cordons would just hamper our ability to get aid in and try to keep infect

More ›