Viewing profile — christopheraden

The Ashley Madison Breach comes to mind. If the core demographic cares about not wanting their data on the platform to get out, they will vote with their feet. That said, I think t…

> Have fun explaining to your spouse why your household's TV is showing more dating site ads than that of their friends. The targeting is sometimes only _so_ good. While it works i…

> I feel like this argument should be a class of fallacy. Lots of things have "existed" for a long time, but that doesn't mean previous iterations were effective. This is pretty cl…

While it is a policy issue at its core, changing law and policy moves at a glacial pace, and it's not even a certainty that it'll get changed at all (the "nothing to hide" defense …

Sure, using hypothesis tests could pick out some of the structured examples in the Datasaurus, but in practice, things are often more subtle. Goodness of Fit tests to check for nor…

A couple questions. > OLS works fine in classification problems. And it has advantages. Do you have more explanation of these advantages? I read through the link you sent, and a bi…

What about something ala Neovim? I've only ever looked at Tex from the perspective of a user (I don't program my own macros too often), so I don't know how hard it'd be, but why no…

I use SAS professionally at my job, and R in all my academic/hobby work. R has a couple packages that give similar functionality as PROC SQL (about 95% of my SAS workflow, since it…

>What kind of negative effect might result from a bunch of unqualified high school teachers teaching CS poorly? Is some exposure better than none regardless of teaching quality? Is…

I agree it's a barrier to have such crazy prices, but there are free resources available, especially on a topic as popular as Grammar of Graphics. Hadley Wickham (in my mind, synon…

Excellent! I guess now is the time for me to finally make the move over to El Capitan, since your usage seems pretty similar to mine. Thanks!

Can anyone comment if the GM fixes the battery problems Beta 1 had? I was on the first beta awhile back, and my 2012 rMBP got about an hour battery life (I usually get closer to ~3…

On twitter, the common way to refer to R is rstats, which seems to work okay. See: https://twitter.com/hashtag/rstats

Tufte-Latex, mentioned in the article, is a really nice template that produces some gorgeous Latex handouts with very little effort (I've used it a couple times when I wanted somet…

Fixxer, I totally agree that it's great that one be capable of doing these things, but sometimes it's not as important as other things that could be taught. Like acbart, sometimes …

Very well deserved! With Anaconda, I just tell my students to download a quick installer, slap on iPython or PyCharm, and it's ready to go. It's one less thing to worry about! The …

Definitely agree. Part of the problem is that data science doesn't have nearly the same formalism in its definition that statistics does. What's the difference between BI's, Data M…

I guess mine is sort of an anti-food-related math concept, then! https://en.wikipedia.org/wiki/No_free_lunch_theorem

I come from the world of biostatistics, where diagnostic tests are usually measured in terms of Sensitivity (probability of Predicting Evil, given actually Evil, same as Precision)…

They hint at withholding data ("The same logic applies when it comes time to splitting our data into training and validation sets"), though they don't outright mention cross-valida…

Most likely http://en.wikipedia.org/wiki/Design_of_experiments

Thank you for posting the data--it makes it easier for us to follow along at home. I've written something up where I used tenure instead of the ranks. http://christopheraden.github…

Depends on whether you represent sick-time as continuous or discrete. Zipf's Law takes support on the integers, whereas the Exponential takes support on all positive reals.

This is an interesting application of statistics! I'm surprised how well the sick-time ranking correlates with the sick times. Intuitively, I'd imagine we'd expect correlation betw…