1308 search results for "Rstudio"

EARL2015 Conference, London – Presenters Announced

April 27, 2015
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EARL2015 Conference, London – Presenters Announced

We are delighted to announce the impressive line up of speakers for September’s London EARL Conference.  The speakers represent industries including Energy, Leisure, Insurance, FCMG, Finance, Market Research, Healthcare and Sport and offer real world examples of the usage and application of … Continue reading →

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Comparing Tree-Based Classification Methods via the Kaggle Otto Competition

April 27, 2015
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Comparing Tree-Based Classification Methods via the Kaggle Otto Competition

In this post, I’m going to be looking at the progressive performance of different tree-based classification methods in R, using the Kaggle Otto Group Product Classification Challenge as an example. This competition challenges participants to correctly classify products into 1 of 9 classes based on data in 93 features. I’ll start with basic decision trees and … Continue reading...

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Doing quantitative archaeology with open source software

April 25, 2015
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(This is a guest post by Ben Marwick, originally published on ATOR blog) This short post is written for archaeologists who frequently perform common data analysis and visualization tasks in Excel, SPSS or similar commercial packages. It was motivated by my recent observations at the Society of American Archaeology meeting in San Francisco – the largest annual meeting of archaeologists in the...

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Dashboards in R with Shiny & Plotly

April 24, 2015
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Dashboards in R with Shiny & Plotly

Shiny is an R application that allows users to build interactive web applications easily in R! Shiny apps involve two main components: a ui (user interface) script and a server script. The ui script controls the layout of the app and the server script controls what the app does. In other words, the ui script creates

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Introducing shinyjs: perform common JavaScript operations in Shiny apps using plain R code

April 23, 2015
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Introducing shinyjs: perform common JavaScript operations in Shiny apps using plain R code

shinyjs is my second R package that managed to find its way past the CRAN review process. It lets you perform common useful JavaScript operations in Shiny applications without having to know any JavaScript. Demos You can check out a demo Shiny app that lets you play around with some of the functionality that shinyjs makes available, or have a look at a...

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Supplementing your R package with a Shiny app

April 22, 2015
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The R community is generally very fond of open-source-ness and the idea of releasing all code to the public. Writing packages has become such an easy experience now that Hadley's devtools is so powerful, and as a result there are new packages being released by useRs every single day. A good package needs to have two things: useful functionality, and...

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RcppArmadillo 0.5.000.0

April 22, 2015
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A new major version 5.000 of Armadillo was released by Conrad a couple of days ago. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close to a Matlab. This version brings several new functions for sparse matrices, and automagically...

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Introducing ghrr: GitHub Hosted R Repository

April 21, 2015
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Introducing ghrr: GitHub Hosted R Repository

Background R relies on package repositories for initial installation of a package via install.packages(). A crucial second step is update.packages(): For all currently installed packages, a list of available updates is constructed or offered for either one-by-one or bulk updates. This keeps the local packages in sync with upstream, and provides for a very convenient way...

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Parse and process XML (and HTML) with xml2

April 21, 2015
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Parse and process XML (and HTML) with xml2

I’m pleased to announced that the first version of xml2 is now available on CRAN. Xml2 is a wrapper around the comprehensive libxml2 C library that makes it easier to work with XML and HTML in R: Read XML and HTML with read_xml() and read_html(). Navigate the tree with xml_children(), xml_siblings() and xml_parent(). Alternatively, use

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Plotting Factor Analysis Results

April 20, 2015
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Plotting Factor Analysis Results

A recent factor analysis project (as discussed previously here, here, and here) gave me an opportunity to experiment with some different ways of visualizing highly multidimensional data sets. Factor analysis results are often presented in tables of factor loadings, which are good when you want the numerical details, but bad when you want to...

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