1879 search results for "tutorial"

R Resources

March 13, 2014
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I am listing some useful R resources. I start with the following post on (free) R Books from R-bloggers.com. An R "Meta" Book by Joseph Rickerthttp://www.r-bloggers.com/an-r-meta-book/ This page lists some e-books or e-materials for various topics in statistics ranging from basis concepts of statistics to advanced methods such as survival analysis and time series analysis. On Experimental Design An R...

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Better handling of JSON data in R?

March 13, 2014
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What is the best way to read data in JSON format into R? Though really common for almost all modern online applications, JSON is not every R user's best friend. After seeing the slides for my Web Scraping course, in which I somewhat arbitrarily veered between using the packages rjson and RJSONIO, the creator of a...

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In case you missed it: February 2014 roundup

March 12, 2014
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In case you missed them, here are some articles from February of particular interest to R users: A statistical analysis of various forecasting methods (using R) leads to correct predictions for 21 of 24 Oscars awards. There are now 123 R User Groups worldwide, and applications for Revolution Analytics sponsorship grants are open until March 31. Revolution Analytics was...

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Using Google BigQuery with R

March 10, 2014
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Using Google BigQuery with R

Hey everybody, this tutorial is about combining two great and powerful tools: R and Google BigQuery. Big Query: So but what is BigQuery? I think Google describes it very well on the developers page: “Querying massive datasets can be time consuming and expensive without the right hardware and infrastructure. Google BigQuery solves this problem by …

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Using APIs in Python: a quick example

March 4, 2014
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Using APIs in Python: a quick example

Python has an extremely intuitive and straightforward way of dealing with APIs, and makes it simple for people like you or me to access and retrieve information from databases. Before I quickly describe how to use APIs in Python, maybe we should begin with: What is an API? API (Application Programming Interface): An API is a software intermediary

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Emacs, ESS and R for Zombies

March 4, 2014
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Emacs, ESS and R for Zombies

by Rodney Sparapani, PhD Rodney is an Assistant Professor in the Institute for Health and Society from the Division of Biostatistics at the Medical College of Wisconsin in Milwaukee and president of the Milwaukee Chapter of the ASA which is hosting an R workshop on Data Mining in Milwaukee on April 4th. Emacs Speaks Statistics (ESS) is a GPL...

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Plotting an Odd number of plots in single image

March 3, 2014
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Plotting an Odd number of plots in single image

Sometimes I have the need to reduce the number of images for a presentation or an article. A good way of doing it is putting multiple plot on the same tif or jpg file.R has multiple functions to achieve this objective and a nice tutorial for this topic...

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Introduction to R for Quantitative Finance Introduction to R for Quantitative Finance (Book Review)

March 2, 2014
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Introduction to R for Quantitative Finance Introduction to R for Quantitative Finance (Book Review)

Last November 2013, PACKT Publishing launched the Introduction to R for Quantitative Finance. The book around  which is around 164 pages (including cover page and back pages) discuss the implementation different quantitative methods used in financ...

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Call for abstracts to present at useR! 2014

March 2, 2014
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We are happy to inform you that abstract submission for useR! 2014 is now available online, see http://user2014.stat.ucla.edu/ The R User Conference, useR! 2014 is scheduled for July 1-3, 2014 at the University of California, Los Angeles. Before the official program, half-day tutorials will be offered on Monday, June 30. Participants are encouraged to submit The post

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Brief introduction on Sweave and Knitr for reproducible research

February 24, 2014
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Brief introduction on Sweave and Knitr for reproducible research

A few weeks ago I gave a presentation on using Sweave and Knitr under the guise of promoting reproducible research. I humbly offer this presentation to the blog with full knowledge that there are already loads of tutorials available online. This presentation is specific and slightly biased towards Windows OS, so it probably has limited

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