1031 search results for "latex"

one-dimensional integrals

December 25, 2010
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one-dimensional integrals

The foundamental idea of numerical integration is to estimate the area of the region in the xy-plane bounded by the graph of function f(x). The integral was esimated by divide x to small intervals, then add all the small approximations to give a total approximation. Read More: 468 Words Totally

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Questions on the parallel Rao-Blackwellisation

December 21, 2010
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Questions on the parallel Rao-Blackwellisation

Pierre Jacob and I got this email from a student about our parallel Rao-Blackwellisation paper. Here are some parts of the questions and our answer: Although I understand how the strategy proposed in the paper helps in variance reduction, I do not understand why you set b=1 (mentioned in Section 3.2) and why it plays

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Value of an R object in an expression

December 15, 2010
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Value of an R object in an expression

Just wanted to create an expression, existing of some mathematical annotation and a value of an R object. Wasn't that intuitive!

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Video of Reproducible Research with R: Melbourne R Users 1st Dec 2010

December 13, 2010
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As previously mentionedI gave a talk at Melbourne R Users Group titled "Reproducible Research and R Workflow". It covered technologies including LaTeX, Sweave, R, make, Eclipse, and git. This post shares the video. I'd like to thank Pedro Olaya for ...

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Video of Reproducible Research with R: Melbourne R Users 1st Dec 2010

December 13, 2010
By

As previously mentionedI gave a talk at Melbourne R Users Group titled "Reproducible Research and R Workflow". It covered technologies including LaTeX, Sweave, R, make, Eclipse, and git. This post shares the video. I'd like to thank Pedro Olaya for fi...

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R Workflow

December 7, 2010
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R Workflow

When working with R you end up using a large number of datasets, packages, functions, objects, output files, workspaces, etc.  It can get a bit overwhelming trying to keep everything organized.  That is why a consistent, well-organized workf...

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Bayesian model selection

December 7, 2010
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Bayesian model selection

Last week, I received a box of books from the International Statistical Review, for reviewing them. I thus grabbed the one whose title was most appealing to me, namely Bayesian Model Selection and Statistical Modeling by Tomohiro Ando. I am indeed interested in both the nature of testing hypotheses or more accurately of assessing models,

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highlight 0.2-5

December 7, 2010
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I pushed highlight 0.2-5 on CRAN. This release improves the latex renderer and the sweave driver so that multiple lines character strings are properly rendered. This example vignette shows it: \documentclass{report} \begin{document} <<echo=FALSE,results=hide>>= old.op <- options( prompt = " ", continue = " " ) @ <<>>= require( inline ) require( Rcpp ) convolve <- cxxfunction( signature( a = "numeric", b...

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Bayesian adaptive sampling

December 5, 2010
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Bayesian adaptive sampling

In the continuation of my earlier post on computing evidence, I read a very interesting paper by Merlise Clyde, Joyee Ghosh and Michael Littman, to appear in JCGS. It is called  Bayesian adaptive sampling for variable selection and model averaging. The sound idea at the basis of the paper is that, when one is doing

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Le Monde puzzle [48: resolution]

December 4, 2010
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Le Monde puzzle [48: resolution]

The solution to puzzle 48 given in Le Monde this weekend is rather direct (which makes me wonder why the solution for 6 colours is still unavailable..) Here is a quick version of the solution: Consider one column, 1 say. Since 326=5×65+1, there exists one value c with at least 66 equal to c. Among

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