Shravan Vasishth's Slog (Statistics blog)

This blog is a repository of cool things relating to statistical computing, simulation and stochastic modeling.

Wednesday, July 04, 2007

Selection bias in journal articles

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Journals dealing in psycholinguistic research do not publish null results generally, because they are "inconclusive". So it's ...
1 comment:
Saturday, April 28, 2007

Rlang mailing list

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Roger Levy has created a possibly useful wiki for exchanging questions about the use of R for language research: https://ling.ucsd.edu/mailm...
Saturday, April 21, 2007

How to choose between a multiplicity of sexy models

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It's websites like this that give model selection such a bad reputation in science: http://www.modelselection.org/

Nice introduction to R

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http://heather.cs.ucdavis.edu/~matloff/r.html

A blog most amazing

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I just found a most astounding blog via Gelman's blog: http://emotion.inrialpes.fr/~dangauthier/blog/
Tuesday, April 17, 2007

How to extract SEs from lmer fixed effects estimates

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Extracting fixed effects coefficients from lmer is easy: fixef(lmer.fit) But extracting SEs of those coefficients is, well, trivial, but you...
1 comment:
Saturday, February 17, 2007

Hmisc: how to increase magnification

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One non-obvious thing (at least to me) about Hmisc's xYplot function is that to increase magnification or other parameters of a graph co...
Thursday, January 25, 2007

using winbugs with gelman and hill book on intel macs

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I finally installed Windows on my Mac (a traumatic experience) and finally got the code working. However, the startup instructions on the we...
1 comment:
Monday, January 22, 2007

Some expensive lessons I recently learnt about R/Sweave

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1. If you are going to generate lots of latex tables automatically from an Rnw file, LABEL THEM. 2. weaver does not work with xYplot. If you...
2 comments:
Saturday, January 13, 2007

Incomplete Review of Gelman and Hill's Data Analysis using Regression and Multilevel/Hierarchical Models

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I'm writing this somewhat cranky review as I read the book. Compared to the Pinheiro and Bates book, the examples in this book are initi...
Thursday, January 04, 2007

Great statistics courses that use R

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1. http://www.unc.edu/courses/2006spring/ecol/145/001/docs/lectures.htm 2. http://www.stat.washington.edu/vanduijn/560/ Statistical learning...
1 comment:
Wednesday, January 03, 2007

Null hypotheses, significance testing and all that jazz

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Some amazing articles I've recently read in my ample spare time: 1. The Insignificance of Null Hypothesis Significance Testing Jeff...
Tuesday, January 02, 2007

Great article: EDA for HLMs

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There's an interesting paper I just read that comes with Sweave/R code that the article uses: http://www-personal.umich.edu/ ~jwbowers/...

Installing weaver

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It is not immediately obvious how one can install weaver (thanks to balajis for telling me about it--see his comment to the Sweave speed iss...

How I maintain my data

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As soon as you have a lot of experiments floating around, you tend to get a proliferation of code and data files. Usually, chaos ensues. If ...
Monday, January 01, 2007

Putting together a library

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The Introduction to R and other documentation CRAN tells you how to build a library. But it is remarkably hard to find a step-by-step how-to...
1 comment:
Wednesday, December 13, 2006

Sweave for complex projects (speed issues)

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One problem my colleagues and I face is that our statistical analysis projects quickly become very complex, and recompiling Sweave becomes a...
1 comment:
Friday, September 15, 2006

How to compute min-F

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Here's how to compute minF in R. You have to give the function the F1 and F2 values and the denominator dfs for each: minf(f1,f2,n1,n2)....
3 comments:
Monday, February 13, 2006

Sweave introduction

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Sweave is a package that comes with R , and can be used to interleave LaTeX and R code. Here's how I use it: (I'm assuming you...
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Shravan Vasishth
Berlin, Berlin, Germany
I'm professor of linguistics at the University of Potsdam in Germany.
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