1503 search results for "tutorial"

2013 was a good year for R User Group Meetings

December 4, 2013
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2013 was a good year for R User Group Meetings

by Joseph Rickert R user groups are thriving. By our count of events listed on Revolution Analytics' Community Calendar, there were about 441 face-to-face R meetups worldwide in 2013; up 41% from 312 in 2012. The plot below indicates what the activity looks like on a monthly basis. (Download the data and R code behind this chart here.) My...

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a public list of R freelancers

December 4, 2013
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tl,dr: If you want to be contacted for freelance R work, edit this list https://github.com/isomorphisms/hire-an-r-programmer/blob/master/README.md.   Background/Problem: I was looking for a list of R-programming freelancers and realised there is no such list. Other than famous people and people I already talk to, I don’t know even a small fraction of the R community—let alone people who do R...

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a public list of R freelancers

December 4, 2013
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tl,dr: If you want to be contacted for freelance R work, edit this list https://github.com/isomorphisms/hire-an-r-programmer/blob/gh-pages/README.md.   Background/Problem: I was looking for a list of R-programming freelancers and realised there is no such list. Other than famous people and people I already talk to, I don’t know even a small fraction of the R community—let alone people who do R among other...

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Basic overview of the rmongodb package for R

December 2, 2013
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I have been playing around with MongoDB quite a bit over the last few months.  Because I am much better at coding in R, I decided to write up my notes on how to use the rmongodb package. This is not a comprehensive tutorial by any stretch, but I wanted to share my notes as

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Introducing CrimeMap – A Web App Powered by ShinyApps!

November 29, 2013
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Introducing CrimeMap – A Web App Powered by ShinyApps!

A few months ago I did a mini project using open crime data and R to create crime visualisations. At that time, I was already thinking about a web app using Shiny but I couldn't justify the time to develop the app and then set up a server etc. Not unti...

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The R Backpages 2

November 27, 2013
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The R Backpages 2

by Joseph Rickert In this roundup of R-related news: Domino enables data science collaboration; Plotly adds an R graphics gallery; Revolution Analytics R user group sponsorship applications are open; and Quandl adds new data sets. San Francisco startup takes on collaborative Data Science Domino, a San Francisco based startup, is inviting users to sign up to beta test its...

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Getting Started with Mixed Effect Models in R

November 25, 2013
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Getting Started with Multilevel Modeling in R Getting Started with Multilevel Modeling in R Jared E. Knowles Introduction Analysts dealing with grouped data and complex hierarchical structures in their data ranging from measurements nested within participants, to counties nested within states or students nested within classrooms often find themselves...

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R and Bayesian Statistics

November 21, 2013
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R and Bayesian Statistics

by Joseph Rickert Drew Linzer, the Bayesian statistician who attracted considerable attention last year with his spot-on, R-based forecast of the 2012 presidential election, recently gave a tutorial on Bayesian statistics to the Bay Area useR Group (BARUG). Drew covered quite a bit of ground running R code that showed how to make use of WinBugs, JAGS and Stan,...

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rgbif changes in v0.4

November 21, 2013
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The Global Biodiversity Information Facility (GBIF) is a warehouse of species occurrence data - collecting data from a lot of different sources. Our package rgbif allows you to interact with GBIF from R. We interact with GBIF via their Application Programming Interface, or API. Our last version on CRAN (v0.3) interacted with the older version of their API -...

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Sending data from client to server and back using shiny

November 20, 2013
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Sending data from client to server and back using shiny

After some time of using shiny I got to the point where I needed to send some arbitrary data from the client to the server, process it with R and return some other data to the client. As a client/server programming newbie this was a challenge for me as I did not want to dive

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