1092 search results for "how to import image file to R"

Plugging hierarchical data from R into d3

November 20, 2013
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Plugging hierarchical data from R into d3

Here I show how to convert tabulated data into a json format that can be used in d3 graphics. The motivation for this was an attempt at getting an overview of topic models (link). Illustrations like the one to the right are very attractive; my motivati...

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Analyze Facebook with R

November 19, 2013
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Analyze Facebook with R

Hello everybody! Today I found something very cool: There is a R package for mining Facebook. For Twitter there are different, but this is the first one really working well with Facebook. So I wanted to test it and was amazed about how easy it works. Setup: The first thing we need is a Facebook …

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Calling R from the ERP – A dirty little hack

November 19, 2013
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Calling R from the ERP – A dirty little hack

Since I joined SAP around 2 years ago, I simply stopped using ABAP…even when I use it for almost 11 years when I was a consultant…A week ago, I was thinking about writing a new blog…something nice…some hacky…something that would allow me to just rest and don’t blog for the rest of the year…I thought about ERP and R…while...

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Curve sketching for calculus

November 18, 2013
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Curve sketching for calculus

This is a short post for my students in the CUNY MS Data Analytics program on sketching curves in R. …Continue reading »

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Le Monde puzzle [#839]

November 15, 2013
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Le Monde puzzle [#839]

A number theory Le Monde mathematical puzzle whose R coding is not really worth it (and which rings a bell of a similar puzzle in the past, puzzle I cannot trace…): The set Ξ is made of pairs of integers (x,y) such that (i) both x and y are written as a sum of two squared integers (i.e., are

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The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux

November 14, 2013
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The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux

An article called The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux has appeared in the latest volume of he Journal of Statistical Software: http://www.jstatsoft.org/v55/i07. The RAppArmor package is one of the foundations of the OpenCPU framework. It protects against malicious use and excessive use of hardware...

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The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux

November 14, 2013
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The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux

An article called The RAppArmor Package: Enforcing Security Policies in R Using Dynamic Sandboxing on Linux has appeared in the latest volume of he Journal of Statistical Software: http://www.jstatsoft.org/v55/i07. The RAppArmor package is one of the foundations of the OpenCPU framework. It protects against malicious use and excessive use of hardware...

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Key Driver vs. Network Analysis in R

November 8, 2013
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Key Driver vs. Network Analysis in R

When marketing researchers speak of driver analysis, they are referring to an input-output model with overall satisfaction as the output and performance ratings of specific product and service components as the inputs. The causal model is straightforwa...

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The R Backpages

November 7, 2013
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The R Backpages

by Joseph Rickert As an avid newspaper reader (I still get the print edition of the New York Times delivered every Sunday morning) I have always thought that some of the most interesting news is to be found in the back pages. So, in that spirit here are some things that I thought might be fit to print. Plotly...

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College Basketball: Presence in the NBA over Time

November 7, 2013
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College Basketball: Presence in the NBA over Time

Interested in practicing a bit of web-scraping, I decided to make use of a nice dataset provided by Databasebasketball.com in order to examine the representation of various college programs in the NBA/ABA over time. This dataset only includes retired players, and ends in 2010, so I decided to...

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