3107 search results for "Twitter"

R benchmark for High-Performance Analytics and Computing (II): GPU Packages

April 7, 2017
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R benchmark for High-Performance Analytics and Computing (II): GPU Packages

Share This: 1. Overview In the previous post (here), we have analyzed the performance gain of R in the heterogeneous system by accelerators, including NVIDIA GPU and Intel Xeon Phi. Furthermore, GPU accelerated packages can greatly improve the performance of R. Figure 1 shows the download statistics of CRAN over the years. Obviously, GPU is

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The Run(chart)ing Man

April 5, 2017
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The Run(chart)ing Man

Measurement for improvement in healthcare with R and Qlik - My not so secret obsession Anyone in the small subset of the Earth’s population who both read this blog AND follow me on Twitter will know that I spend a lot of time at work eithe...

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R track on exercism.io

April 4, 2017
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R track on exercism.io

The devil is in the details! - As I’ve said before, when it comes to programming I’m a firm believer in the “learn by doing” approach. exercism.io is a project which exemplifies this. I came across exercism.io earlier this year while ex...

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Key Phrase Extraction from Tweets

April 2, 2017
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Key Phrase Extraction from Tweets

In a previous post of mine published at DataScience+, I analyzed the text of the first presidential debate using relatively simple string manipulation functions to answer some high level questions from the available text. In this post, we leverage a few other NLP techniques to analyze another text corpus – A collection of tweets. Given Related Post

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Simple Offline Airport Wi-Fi Tracker in R

April 2, 2017
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@visualisingdata rebroadcast this tweet today: Wireless Passwords From Airports And Lounges Around The World https://t.co/OV0WJfwj8E— deb verhoeven (@bestqualitycrab) April 2, 2017 The Google Maps interface is a bit meh and the “formatted” data is also a bit meh but the data is useful when travelling (NOTE: always use a VPN in airports on both your... Continue reading...

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Using R: Don’t save your workspace

April 2, 2017
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Using R: Don’t save your workspace

To everyone learning R: Don’t save your workspace. When you exit an R session, you’re faced with the question of whether or not to save your workspace. You should almost never answer yes. Saving your workspace creates an image of your current variables and functions, and saves them to a file called ”.RData”. When you

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Easy leave-one-out cross validation with pipelearner

March 31, 2017
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Easy leave-one-out cross validation with pipelearner

@drsimonj here to show you how to do leave-one-out cross validation using pipelearner.  Leave-one-out cross validation Leave-one-out is a type of cross validation whereby the following is done for each observation in the data: Run model on all other observations Use model to predict value for observation This means that a model is fitted, and a...

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March ’17 Tips and Tricks

March 30, 2017
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March ’17 Tips and Tricks

This month’s Tips and Tricks focus is on file navigation. Many of these tips are straightforward - more tip than trick - but they can save quite a bit of time and frustration. Open Recent Please don’t spend time navigating through your folder stru...

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March ’17 Tips and Tricks

March 30, 2017
By
March ’17 Tips and Tricks

This month’s Tips and Tricks focus is on file navigation. Many of these tips are straightforward - more tip than trick - but they can save quite a bit of time and frustration. Open Recent Please don’t spend time navigating through your folder structure to find a recent project or file. Go to File/Function RStudio automatically indexes...

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Customising Shiny Server HTML Pages

March 30, 2017
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Customising Shiny Server HTML Pages

Mark Sellors Head of Data Engineering At Mango we work with a great many clients using the Shiny framework for R. Many of those use Shiny Server or Shiny Server Pro to publish their shiny apps within their organisations. Shiny … Continue reading →

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