As part of my long slog towards statistical understanding, I started making notes on the very specific topic of linear models. The details are tricky and hard to keep in mind, and it is difficult to go back and forth between books and notes to try to review them. So I tried to summarize the basic ideas into a few pages (the summary sheet is not yet complete).
It's not quite a cheat sheet, so I call it a summary sheet.
Here is the current version:
https://github.com/vasishth/StatisticsNotes
Needless to say (although I feel compelled to so it), the document is highly derivative of lecture notes I've been reading. Corrections and comments and/or suggestions for improvement are most welcome.
Wednesday, January 23, 2013
Saturday, March 03, 2012
Cauchy and determinants: when life was simple
" In Cauchy's day, when life was simple and matrices were small, determinants played a major role in analytic geometry and other parts of mathematics."
Lay, p. 202 [Linear Algebra and its Applications, 3rd Edition (Update)]
Lay, p. 202 [Linear Algebra and its Applications, 3rd Edition (Update)]
Saturday, February 04, 2012
Alpha values
Recently seen quote on Gelman's blog:
“No scientific worker has a fixed level of significance at which from year to year, and in all circumstances, he rejects hypotheses; he rather gives his mind to each particular case in the light of his evidence and his ideas.”
(Ronald A. Fisher, 1956, p. 42)
Also read about mindless statistics here: http://people.umass.edu/~bioep740/yr2009/topics/Gigerenzer-jSoc-Econ-1994.pdf
“No scientific worker has a fixed level of significance at which from year to year, and in all circumstances, he rejects hypotheses; he rather gives his mind to each particular case in the light of his evidence and his ideas.”
(Ronald A. Fisher, 1956, p. 42)
Also read about mindless statistics here: http://people.umass.edu/~bioep740/yr2009/topics/Gigerenzer-jSoc-Econ-1994.pdf
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