2616 search results for "gis"

MLB Baseball Pitching Matchups ~ downloading pitch f/x data using the XML package in R [updatedx6]

May 18, 2010
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MLB Baseball Pitching Matchups ~ downloading pitch f/x data using the XML package in R [updatedx6]

Update x6 (Jul 27): so I guess people want pitch counts. The data @ MLB seems to only give the pitch count of the end result and the strikes/balls/outs of the particular pitch. Of course you can combine them to get the pitch count. Stupid WordPress comments strip out necessary HTML to properly display code,

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Confusing slice sampler

May 18, 2010
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Confusing slice sampler

Most embarrassingly, Liaosa Xu from Virginia Tech sent the following email almost a month ago and I forgot to reply: I have a question regarding your example 7.11 in your book Introducing Monte Carlo Methods with R.  To further decompose the uniform simulation by sampling a and b step by step, how you determine the

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Introduction to using R in research

May 13, 2010
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I was recently asked to give a talk to our graduate school annual conference. I offered several titles and the one they picked was Using R in research. I'm not sure if this was a good idea or not. The graduate school covers PhD students across three ar...

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Revolution Analytics and R in the news

May 12, 2010
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It was quite the media frenzy for Revolution and R last week. In conjunction with our relaunch as Revolution Analytics, we spoke to more than a dozen journalists and analysts to explain why we think R is at the center of a perfect storm for predictive analytics: with routine collection of large data sets, data analysis is now a...

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Abbreviations of R Commands Explained: 250+ R Abbreviations

May 10, 2010
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The R programming language includes many abbreviations. Abbreviations exist in function names, argument names, and allowed values for arguments. This post expands on over 150 R abbreviations with the aim of making it easier for users new to R who are trying...

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Abbreviations of R Commands Explained: 250+ R Abbreviations

May 10, 2010
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The R programming language includes many abbreviations. Abbreviations exist in function names, argument names, and allowed values for arguments. This post expands on over 150 R abbreviations with the aim of making it easier for users new to R who are trying...

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Book Review – Modern Applied Statistics with S by W. N. Venables and B. D. Ripley (Springer 2003)

May 9, 2010
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Book Review – Modern Applied Statistics with S by W. N. Venables and B. D. Ripley (Springer 2003)

Order this book from Amazon Modern Applied Statistics with S (Fourth Edition) is one of the oldest and most popular books on Applied Statistics using R and S-plus. A large number of topics in Applied Statistics are covered in this book and it is certainly not for the faint hearted. A sound knowledge of

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Bayes vs. SAS

May 6, 2010
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Bayes vs. SAS

Glancing perchance at the back of my Amstat News, I was intrigued by the SAS advertisement Bayesian Methods Specify Bayesian analysis for ANOVA, logistic regression, Poisson regression, accelerated failure time models and Cox regression through the GENMOD, LIFEREG and PHREG procedures. Analyze a wider variety of models with the MCMC procedure, a general purpose Bayesian

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Where do you want an R User Group?

May 4, 2010
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Wishing there was a local R User's group in your area, but can't find one? New user groups are springing up all the time, but you can kickstart the process by registering interest for a group in your area at meetup.com. As you can see from the map below, there's interest in many places -- your vote could prompt...

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Introduction to R, live virtual talk from JD Long tomorrow

May 3, 2010
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JD Long (of Cerebral Mastication fame) will be giving a live "virtual talk" introducing R: "What it's best at and how you can use it to help you massage data". The talk will be at 7:30PM Pacific time tomorrow, Tuesday May 4. You can register at the link below. vconf.org: Presentation: R The Language

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