1218 search results for "tutorial"

TFX Package

December 5, 2012
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TFX Package

Today I want to highlight the TFX Package created by Garrett See. TFX is an R Interface to the TrueFX(tm) Web API for free streaming real-time and historical tick-by-tick market data for dealable interbank foreign exchange rates with millisecond detail. Garrett provided a great tutorial, examples, and shiny application of TFX at http://rpubs.com/gsee/TFX Please note

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Modis QC Bits

December 5, 2012
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Modis QC Bits

In the course of working through my MODIS  LST project and reviewing the steps that Imhoff and Zhang took as well has the data preparations other researchers have taken ( Neteler ) the issue of MODIS Quality control bits came up.  Every MODIS  HDF file comes with multiple SDS or multiple layers of data. For

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Function Closures and S4 Methods

December 4, 2012
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Function Closures and S4 Methods

This brief tutorial illustrates how to combine S4 object oriented capabilities with function closures in order to develop classes with built in methods. Thanks to Hadley Wickham for the great contribution of material and tutorials made available on the web and to Bill Venables and Stefano Iacus for their kind reviews. Regular … Continue reading →

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My Job Just Got Shiny-er

December 4, 2012
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My Job Just Got Shiny-er

Today I went to the RStudio site to post a feature request.  I noticed up in the top navigation a link called "Shiny".  I like things that are shiny.  It turns out Shiny is a new package the RStudio team has developed for easily making r...

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An update on Shiny

December 4, 2012
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An update on Shiny

Last month we released Shiny, our new R package for creating interactive web applications. The response from the community has been extremely encouraging–we’ve received a lot of great feedback that has helped us to make significant improvements to the framework already! Shiny 0.2.3 on CRAN Starting with Shiny 0.2.3, you can install the latest stable

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What exactly is “elegant” code in R?

December 4, 2012
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In celebration of my achieving 10,000 “reputation” on Stack Overflow, I’m re-posting one of my questions from there that was (as I had expected) deleted after being live for about 5 hours. In that time, I never really got a satisfactory answer, so if anyone wants to offer one in the comments, that would be

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analyze the basic stand alone medicare claims public use files (bsapufs) with r and monetdb

December 3, 2012
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the centers for medicare and medicaid services (cms) took the plunge.  the famous medicare 5% sample has been released to the public, free of charge.  jfyi - medicare is the u.s. government program that provides health insurance to 50 million...

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Hadley’s guide to high-performance R with Rcpp

November 28, 2012
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Hadley Wickham has written a comprehensive tutorial for the Rcpp package, which makes it easy to create C++ code embedded in R programs. Hadley explains why you might want to do this in the introduction: Sometimes R code just isn't fast enough - you've used profiling to find the bottleneck, but there's simply no way to make the code...

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Quick Shiny Demo – Exploring NHS Winter Sit Rep Data

November 28, 2012
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Quick Shiny Demo – Exploring NHS Winter Sit Rep Data

Having spent a chink of the weekend and a piece of yesterday trying to pull NHS Winter sitrep data into some sort of shape in Scraperwiki, (described, in part, here: When Machine Readable Data Still Causes “Issues” – Wrangling Dates…), I couldn’t but help myself last night and had a quick go at using RStudio’s

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Extending Commodity time series

November 21, 2012
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Extending Commodity time series

I want to follow up with Extending Gold time series post by showing how we can extend Commodity time series. Most Commodity ETFs began trading in 2006, please see the List of Commodity ETFs page. I will use DBC – PowerShares DB Commodity Fund, one on the most liquid Commodity ETFs as my proxy for

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