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Things to put on my cheat sheet / Things to think about
5 days to the big exam! We get to use 10 pages of notes, double-sided. It's way too much for my taste, but it's an interesting exercise, since it encourages you to think about relations between topics.
Asymptotics of Estimators (asymptotic consistency, normality)* MLE: for regular parameter, asymptotically normal, with rate 1/sqrt(n ( Read more... ) -
productivity
The most important (and possibly the hardest) exam of my life is in 3 weeks. I am looking for a good balance between ( Read more... ) -
NYC subway fantasy map
When I have nothing better to do in the subway, I often imagine extensions to the subway system ( Read more... ) -
new WC?
I live in a 2BR apartment with one housemate, and I am tired of sharing a bathroom. The design is particularly bad because the toilet, sink and shower are all in the same space, ensuring that unless the housemates are willing to share that level of intimacy, it is impossible for one person to do X while the other does Y. (I try to have an open- ( Read more... ) -
Anglicisms in Brazil; multilingual etymological dictionary?
I occasionally read Portuguese translations of the NYTimes. They tend to be very literal, so some of the meaning is surely lost on readers who don't know English expressions and mannerisms (Paul Krugman's puns come to mind ( Read more... ) -
3D model of human body; human flexibility; yoga
Dear LJ Genie ( Read more... ) -
insta-chair
Dear LJ Genie ( Read more... ) -
my iPad apps & reviews (mostly drawing and note-taking)
ShowMe: FREE! Perfect for Khan Academy-style lectures.
DropText: $1. For editing plain text documents on the DropBox cloud, a feature that the DropBox app is lacking.
These 2 apps are mainly for annotating pre-existing documents:
iAnnotate PDF: $10. Highlight and draw on PDFs. Annoyance: pencil thickness is zoom-dependent, so every ( Read more... ) -
armchair neuroscience
Conjectures: (a) the temporal resolution of human vision is determined by the refractory period of sensory neurons (b) this is the mechanism by which alcohol slows down one's reflexes.
Alex Sweet (1951) p.198:
<< At the fovea, for either the light- or dark-adapted eye, the just noticeable interval of time between two adjacent flashes was ( Read more... ) -
R: semantics and pragmatics / names vs values
One of the annoyances in R is dealing with functions that don't evaluate one or more arguments that you pass, or who otherwise use the name of the variable passed. The problem appears when you try to write abstractly.
e.g. with(data, ZQ/Total.Z) will compute data$ZQ / data$Total.Z . What 'with' is doing is parsing that expression, figuring out ( Read more... )