4500 search results for "git"

paste, paste0, and sprintf

September 14, 2013
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paste, paste0, and sprintf

I find myself pasting urls and lots of little pieces together lately. Now paste is a standard go to guy when you wanna glue some stuff together. But often I find myself pasting and getting stuff like this: Rather than … Continue reading →

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Send Mac OS Notifications From RStudio *Server*! (via Growl)

September 14, 2013
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Send Mac OS Notifications From RStudio *Server*! (via Growl)

Having received a couple follow-ups to the OS X notifications on RStudio Desktop for the Mac post, I was determined to find a quick hack to get remote notifications to OS X working from (at least) RStudio Server instances running on the same network. It turns out the hack was pretty straightforward just by using

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Alpha Testing RevoScaleR running in Hadoop

September 13, 2013
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by Joseph Rickert At Revolution Analytics our mission is to establish R as the driver for Enterprise level computational frameworks. In part, this means that a data scientist ought to be able to develop an R based application in one context, e.g. her local PC, and then get it moving by changing horses on the fly (so to speak)...

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German election: Election promises visualized with R

September 13, 2013
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German election: Election promises visualized with R

Data analysis is mostly focused on structured and standardized data, e. g. data from data bases, because these data can be used easily for analysis. Nevertheless even unstructured data offer chances to generate advantages. Concrete applications like content analysis or sentiment detection are discussed more and more frequently. Of course, there are still limits to

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Who uses E-Bikes in Toronto? Fun with Recursive Partitioning Trees and Toronto Open Data

September 12, 2013
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Who uses E-Bikes in Toronto?  Fun with Recursive Partitioning Trees and Toronto Open Data

I found a fun survey released to the Toronto Open Data website that investigates the travel/commuting behaviour of Torontonians, but with a special focus on E-bikes.  When I opened up the file, I found various demographic information, in addition to a … Continue reading →

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Send Mac OS Notifications From R

September 12, 2013
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Send Mac OS Notifications From R

The data retrieval and computation operations are taking longer and longer as we start cranking through more security data and I’ll often let tasks run in the background whilst performing more mundane tasks or wasting time on Twitter. For folks using RStudio Desktop on a Mac, you can use the #spiffy terminal-notifier from Julien Blanchard

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pander 0.3.8 is out

September 12, 2013
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pander 0.3.8 is out

I have just released a new version of pander to CRAN with some minor fixes and some (hopefully) useful new features to generate markdown tables beside other tools:although I really love the Droid Sans font that I used to bundle with the package, I deci...

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rCharts | PerformanceAnalytics Tables + Systematic Investor Cluster

September 12, 2013
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rCharts | PerformanceAnalytics Tables + Systematic Investor Cluster

I thought a good extension of the last post d3-ify Systematic Investor Cluster Weight would be to analyze the returns with every table that PerformanceAnalytics offers.  Since d3 interactive charts are way more fun than tables, let’s plot each table with dimplejs and rCharts. Click here or on the screenshot...

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Direction of Change Forecasting using a Dynamic Binary Model

September 12, 2013
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Direction of Change Forecasting using a Dynamic Binary Model

While it is generally accepted that the returns of financial assets are almost impossible to forecast with any degree of accuracy which would provide meaningful profit1 , there is evidence that the sign of the returns is much more forecastable. Theoretically, Christoffersen and Diebold (2006) have shown how the forecastability of the sign is related

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Why use R for Data Analysis?

September 11, 2013
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This was a presentation made to few of my colleagues. The idea was to provide a brief introduction to R, provide few reasons for my switching to it, and give some samples of graphics/interactive visualizations that could be created with minimal coding....

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