2798 search results for "twitter"

Time Series Matching

January 13, 2012
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Time Series Matching

THIS IS NOT INVESTMENT ADVICE. The information is provided for informational purposes only. If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck. Do you want to know what S&P 500 will do in the next week, month, quarter? One way to make an

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Amateur Mapmaking: Getting Started With Shapefiles

January 13, 2012
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Amateur Mapmaking: Getting Started With Shapefiles

One of the great things about (software) code is that people build on it and out from it… Which means that as well as producing ever more complex bits of software, tools also get produced over time that make it easier to do things that were once hard to do, or required expensive commercial software

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Functional ANOVA using INLA

January 13, 2012
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Functional ANOVA using INLA

Ramsay and Silverman’s Functional Data Analysis is a tremendously useful book that deserves to be more widely known. It’s full of ideas of neat things one can do when part of a dataset can be viewed as a set of

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New version of analogue (0.8-0)

January 12, 2012
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New version of analogue (0.8-0)

Yesterday I pushed an update of my analogue package to CRAN. The new version is 0.8-0 and contains some new functions, several bug fixes and a major change arising from additions to R 2.14.x requiring all packages to have a … Continue reading →

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Video of “Reflections, Anecdotes, and Tips on R” by Lyndon Walker

January 11, 2012
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This post shares the video from the talk presented On November 30 2011 by Dr Lyndon Walker (see Meetup page) at the end of year function for Melbourne R Users. Lyndon Walker (@lyndonwalker) has been using R for nearly half … Continue reading →

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Making an R Package: Not as hard as you think

January 11, 2012
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Making an R Package: Not as hard as you think

I’ve been writing functions in R for a while to do various things like talking to APIs, web scraping, model testing and data visualisation (basically thing which can get a bit repetitive!), but have always been slightly intimidated about turning those functions into a package, which I could then call using library (package-name). Note that … Continue reading...

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RStudio v0.95 Preview Available

January 10, 2012
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RStudio v0.95 Preview Available

The next version of RStudio (v0.95) is now available as a preview release. Highlights include: Projects — A new system for managing R projects that enables easy switching between working directories, running multiple instances of RStudio with different projects, and per-project contexts for source documents, workspaces, and history. Code Navigation — Typeahead navigation by file

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Coming of Age: R and Spatial Data Visualisation

January 10, 2012
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Coming of Age: R and Spatial Data Visualisation

I have been using R (a free statistics and graphics sof

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Harmonic means, again again

January 9, 2012
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Harmonic means, again again

Another arXiv posting I had had no time to comment is Nial Friel’s and Jason Wyse’s “Estimating the model evidence: a review“. This is a review in the spirit of two of our papers, “Importance sampling methods for Bayesian discrimination between embedded models” with Jean-Michel Marin (published in Jim Berger Feitschrift, Frontiers of Statistical Decision

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Tracking my expenses

January 8, 2012
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Tracking my expenses

One new-year resolution I made last year was to understand where my money goes. From previous experiments I know that expense tracking has to be as simple as possible. My approach is toUse my cash card as often as possible. This automatically tracks the date and some information on the vendor. Use twitter to track my cash expenses. This supplements...

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