1663 search results for "tutorial"

An R tutorial for Microsoft Excel users

February 16, 2015
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If you currently use a spreadsheet like Microsoft Excel for data analysis, you might be interested in taking a look at this tutorial on how to transition from Excel to R by Tony Ojeda. The tutorial explains how to use R functions in place of Excel formulas, including tools like =AVERAGE and =VLOOKUP. For the most part, it uses...

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drat Tutorial: First Steps towards Lightweight R Repositories

February 7, 2015
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Now that drat is on CRAN and I got a bit of feedback (or typo corrections) in three issue tickets, I thought I could show how to quickly post such an interim version in a drat repository. Now, I obviously already have a checkout of drat. If you, dear reader, wanted to play along and create your...

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Tutorial on High-Performance Computing in R

February 3, 2015
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Tutorial on High-Performance Computing in R

I wanted to call your attention to what promises to be an outstanding tutorial on High-Performance Computing (HPC) in R, presented in Web streaming format. My Rth package coauthor Drew Schmidt, who is also one of the authors of the pbdR package, will be one of the presenters.  Should very interesting and useful.

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A data.table R tutorial by DataCamp: intro to DT[i, j, by]

February 3, 2015
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A data.table R tutorial by DataCamp:  intro to DT[i, j, by]

This data.table R tutorial explains the basics of the DT command which is core to the data.table package. If you want to learn more on the data.table package, DataCamp provides an interactive R course on the data.table package. The course has more than 35 interactive R exercises – all taking place in the comfort of The post

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GPU Tutorial, with R Interfacing

January 24, 2015
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GPU Tutorial, with R Interfacing

You’ve heard that graphics processing units — GPUs — can bring big increases in computational speed.  While GPUs cannot speed up work in every application, the fact is that in many cases it can indeed provide very rapid computation.  In this tutorial, we’ll see how this is done, both in passive ways (you write only … Continue reading...

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OpenMP Tutorial, with R Interface

January 17, 2015
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OpenMP Tutorial, with R Interface

Almost any PC today is multicore.  Dual-core is standard, quad-core is easily attainable for the home, and larger systems, say 16-core, are easily within reach of even smaller research projects. In addition, large multicore systems can be “rented” on Amazon EC2 and so on. The most popular way to program on multicore machines is to … Continue reading...

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Spatial visualization with R – Tutorial

December 10, 2014
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Spatial visualization with R – Tutorial

The visualization of spatial data is one of the most popular applications when using R. This tutorial is an introduction to the visualization of spatial data and map making in R. The following issues will be addressed: Import anduse of shapefiles in R (shapefile is a file format designed for spatial data). Data management and

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YATORP — Yet Another Tutorial on R Packaging

November 24, 2014
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What the world needs right now is yet another tutorial on R packages and their creation. Luckily, this last Friday and Saturday, I had the opportunity to present in a workshop organized by Frank DiTraglia at Penn's shiny new Warren Center, and held a...

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Slides of keynote speeches, tutorials and panelist presentations at IEEE Big Data 2014

November 23, 2014
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Slides of keynote speeches, tutorials and panelist presentations at IEEE Big Data 2014

Slides of keynote speeches, tutorials and panelist presentations at the 2014 IEEE International Conference on Big Data can be found at the conference website at links below. (1) Keynote speech http://cci.drexel.edu/bigdata/bigdata2014/keynotespeech.htm - Never-Ending Language Learning, Tom Mitchell – E. Fredkin … Continue reading →

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Hadley Wickham’s dplyr tutorial at useR! 2014, Part 2

November 3, 2014
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Part 2 of the dplyr tutorial is now available! Hadley will be covering Grouped Mutate/Filter, Joins,...

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