john_horton

45 ms·

151.
by john_horton 16y ago
Interesting - do you have a sample chapter you can make public? (if there already is on the site you linked to, sorry for being obtuse).
152.
Snippets of code for things you do all the time in R(4dpiecharts.com)
28 points by john_horton 16y ago|13 comments
153.
by john_horton 16y ago
I see your point---my point is that this article is not a good jumping off point for discussions about philosophy of science or epistemology (bold title notwithstanding). It's about bad statistical practice. More importantly, it's about a b
154.
by john_horton 16y ago
I don't think this is what the article is about. At least for physical and biological phenomena, there is some objective truth. For example, Seroquel does or does not reduce schizophrenic symptoms---the reason an original finding is "tempor
155.
by john_horton 16y ago
Andrew Gelman has a great blot post on this: http://www.stat.columbia.edu/~cook/movabletype/archives/2010... In a nutshell, the problem arises from trying to estimate small effects and then screening results on statistical significance.
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by john_horton 16y ago
Strange that it was banned. Maybe it had to do with the vignettes---some of the examples are from political science (e.g., election results, polling) and another deals with arsenic in drinking water...or maybe Hu Jintao feels the way to dea
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by john_horton 16y ago
What would be really wonderful (and what I'm hoping will get built) is way to generate web-friendly visualizations directly from the amazing ggplot2 package.
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Google Visualization API & R(r-ecology.blogspot.com)
6 points by john_horton 16y ago|2 comments
159.
by john_horton 16y ago
Depending on your needs, MTurk workers can give you decent feedback for very little money.
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by john_horton 16y ago
I'm skeptical that (a) the personnel system is a huge driver of attrition and that (b) the proposed solution would work well. On (a), deployments are generally pretty terrible, esp. if you have a family. Most officers I know that got out di
161.
What is a browser?(csce242.com)
2 points by john_horton 16y ago|0 comments
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by john_horton 16y ago
Many of these would be at home in the "what not to do" section of Tufte's book. Also - anyone notice on the White House graphic it says that the pope visited "President Cart"?
163.
by john_horton 16y ago
I was at NIPS and talked to one of the authors. I thought the paper was interesting, but I think the "you're not paying enough" critique is spot on. Humans clearly can be better at this task---you just can't give them strong incentives to
164.
by john_horton 16y ago
Agree about beauty---but I think the real genius of ggplot2 is the grammar. After using it, I think it becomes easier to think about data graphically and then quickly generate the visualization you have in your head. ggplot2 alone is a reas
165.
by john_horton 16y ago
And then the World Bank will write-off that debt under their Heavily Indebted Poor Countries Initiative (HIPC): http://goo.gl/iaQfJ The fact that the US has a lot of control over the World Bank seems reasonable given that they put up the
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I've hired 9,119 different workers on MTurk(johnjosephhorton.posterous.com)
2 points by john_horton 16y ago|0 comments
167.
by john_horton 16y ago
Agreed - relative inequality definitely matters.
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by john_horton 16y ago
Income is more concentrated today compared to the post-war period, but I don't think that makes the mean meaningless---it depends upon how much weight you put on a dollar held by different parts of the distribution. That being said, I think
169.
by john_horton 16y ago
There are lots of different moments & quantiles of the income distribution that are interesting and useful to look at, but its not like the mean is terribly misleading here. In the plot you provide, median income in real dollars has inc
170.
by john_horton 16y ago
A few points: (1) Many if not most economists are empirical. Recent John Bates Clark medals---a good reflection of what academic economists think is the best work being done right now---have gone to economists doing empirical work. Recent e
171.
by john_horton 16y ago
I think the relative supply and demand are going to determine prices here, just like any other market. A price floor could be imposed, but this would likely price some work out of the market or lead to other work-arounds as trading partners
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by john_horton 16y ago
In some sense, this is what TurKit already is: http://groups.csail.mit.edu/uid/turkit/ And I think TurKit is part of the back-end for Soylent.
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by john_horton 16y ago
Thanks for the mention (I made mechanical proust) - I agree that there's a lot of dross, but some responses are poignant, funny or interesting. It would be interesting to play around w/ how questions get posed.