Posts Tagged ‘ ruby ’

Iris Data Set Visualization Web App in < 100 LOC

August 7, 2010
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Iris Data Set Visualization Web App in < 100 LOC

The iris data set pops up pretty regularly in statistical literature.  It consists of 50 records from three species of Iris flowers (Iris setosa, Iris virginica and Iris versicolor).   I came across it recently while reading

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Thoroughly Unusual Itches

July 23, 2010
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Thoroughly Unusual Itches

I have found myself over the years in a rather awkward situation.  I work in old-school, bricks and mortar industry IT shops for the most part.  However, I love many open source projects and identify with many of the values of start up cultur...

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Hierarchical Visualizations in R and the Javascript InfoVis Toolkit

July 12, 2010
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Hierarchical Visualizations in R and the Javascript InfoVis Toolkit

I love R.  It is really a great language and platform for statistical work and graphing.  But every technology has its limits - and other tools can be meet different needs.  So in this post, I will start with R and move on to the JavaScr...

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Ajax using JQuery to Sinatra (and a Barplot using R)

July 5, 2010
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Ajax using JQuery to Sinatra (and a Barplot using R)

Part of what attracted me to R was the ease and efficiency in using the language for tasks for which it was designed.  R is a tool among that can be used to do great things with minimal effort.  This post illustrates some other tools and tech...

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Why R doesn’t suck

June 19, 2010
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I first encountered the R programming language a few years ago when I needed to make some plots. Although I’ve used it occasionally since, I always considered it a sort of “Perl for statisticians” — a useful swiss-army knife with … Continue reading →

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Installing Ruby on Linux as a User other than root

June 17, 2010
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Installing Ruby on Linux as a User other than root

Ruby is best known as the language behind the rails web application framework. However, it is a very flexible general purpose language that can be used for tasks of direct interest to R Developers (parsing files, interacting with databases, processing...

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Calling Ruby, Perl or Python from R

June 16, 2010
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Calling Ruby, Perl or Python from R

If you want to interact with other programming languages from R, there are various packages and bindings available. These packages provide a pretty high degree of integration between the langages and allow you to pass objects back and forth seemlessl...

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3 lines of R code to Process a Web Service

June 9, 2010
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3 lines of R code to Process a Web Service

Ruby is well known for its terse syntax and ability to process web services. I prefer JSON (Javascript Object Notation) to XML whenever possible. For example, a script to retrieve a list of World Bank Data takes all of three lines of code (after in...

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Ruby Script to parse ISBNs listed in R-Project to populate an Amazon

June 7, 2010
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Ruby Script to parse ISBNs listed in  R-Project to populate an Amazon

As you probably figured out, I am an Amazon affiliate and have been giving some thought to how to get the best lists of R books available at Amazon. To get the list of ISBNs from R-Project, the following Ruby script did the trick:require 'rubygems'req...

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Experiments with igraph

April 21, 2010
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Experiments with igraph

Networks – social and biological – are all the rage, just now. Indeed, a recent entry at Duncan’s QOTD described the “hairball” network representation as the dominant cultural icon in molecular biology. I’ve not had occasion to explore networks “professionally”, but have always been fascinated by both networks and the tools used to analyse them.

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