822 search results for "knitr"

Data on tour: Plotting 3D maps and location tracks

April 8, 2017
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Data on tour: Plotting 3D maps and location tracks

Recently, I was on Gran Canaria for a vacation. So, what better way to keep up the holiday spirit a while longer than to visualize all the places we went in R!? I am combining location data collected by our car GPS, Google location data from my ...

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R code to accompany Real-World Machine Learning (Chapter 5): Event Modeling

April 8, 2017
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R code to accompany Real-World Machine Learning (Chapter 5): Event Modeling

Abstract The rwml-R Github repo is updated with R code for the event modeling examples from Chapter 5 of the book “Real-World Machine Learning” by Henrik Brink, Joseph W. Richards, and Mark Fetherolf. Examples given include reading large data files with the fread function from data.table, optimization of model parameters with caret, computing and plotting ROC curves...

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Bio7 2.5 for Windows and Linux Released

April 7, 2017
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Bio7 2.5 for Windows and Linux Released

07.04.2017 A new release of Bio7 is available for Windows (64-bit) and Linux (64-bit). The MacOSX version will be released soon, too. This release comes with a plethora of new functions for R. General Bio7 is now based on Eclipse 4.6.3 Redesigned all Bio7 icons and created new icons, too Nearly all icons are now

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Organizing DataFest the tidy way

April 4, 2017
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Organizing DataFest the tidy way

Organizing an event can be a full-time task in and of its own. I have been organizing ASA DataFest for six years at Duke, and over this time, the number of participants has grown from 23 students from Duke only, to 360 students from seven area schools this year! First, a bit about ASA DataFest: ASA DataFest is a data...

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Organizing DataFest the tidy way

April 4, 2017
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Organizing DataFest the tidy way

Organizing an event can be a full-time task in and of its own. I have been organizing ASA DataFest for six years at Duke, and over this time, the number of participants has grown from 23 students from Duke only, to 360 students from seven area schools this year! First, a bit about ASA DataFest: ASA DataFest is a data...

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tidyquant 0.5.0: select, rollapply, and Quandl

tidyquant 0.5.0: select, rollapply, and Quandl

We’ve got some good stuff cooking over at Business Science. Yesterday, we had the fifth official release (0.5.0) of tidyquant to CRAN. The release includes some great new features. First, the Quandl integration is complete, which now enables getting Quandl data in “tidy” format. Second, we have a new mechanism to handle selecting which columns get...

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Dealing with unbalanced data in machine learning

April 1, 2017
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Dealing with unbalanced data in machine learning

In my last post, where I shared the code that I used to produce an example analysis to go along with my webinar on building meaningful models for disease prediction, I mentioned that it is advised to consider over- or under-sampling when you have unbal...

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Building meaningful machine learning models for disease prediction

March 30, 2017
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Building meaningful machine learning models for disease prediction

Webinar for the ISDS R Group This document presents the code I used to produce the example analysis and figures shown in my webinar on building meaningful machine learning models for disease prediction. My webinar slides are available on Github ...

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R and Singularity

March 29, 2017
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by Bryan Lewis R (https://www.r-project.org) is a premier system for statistical and scientific computing and data science. At its core, R is a very carefully curated high-level interface to low-level numerical libraries. True to this principle, R packages have greatly expanded the scope and number of these interfaces over the years, among them interfaces to

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R Improvements for Bio7 2.5

March 29, 2017
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31.03.2017 The next release of Bio7 comes with many new R features and improvements which were integrated since the last release. In this post I like to present a subset of some new R documentation features of the upcoming Bio7 2.5 release. 1. R Markdown Editor: I improved the R markdown editor of Bio7 and

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