Monthly Archives: May 2015

R tops 2015 KDnuggets Software Poll

May 27, 2015
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R tops 2015 KDnuggets Software Poll

R is the leading choice for Predictive Analytics / Data Mining / Data Science software according to the results of the 2015 KDnuggets Software Poll, now in its 16th year. Each of the 28,000 participants selected one or more tools they had used in the last year from a list of 93 options, and R was selected by 46.9%...

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R #1 by Wide Margin in Latest KDnuggets Poll

May 27, 2015
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R #1 by Wide Margin in Latest KDnuggets Poll

The results of the latest KDnuggets Poll on software for Analytics, Big Data and Data Mining are out, and R has moved into the #1 position by a wide margin. I’ve updated the Surveys of Use section of The Popularity of Data … Continue reading →

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Is This How You Dplyr?

May 27, 2015
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Yesterday I ran into a fairly complex issue regarding dplyr mutation and I wanted to get your take on my solution. I have two data frames with the same identifiers and two different date columns which I need to merge into one date column, with the val...

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BMC favors source code plagiarism

May 27, 2015
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BMC favors source code plagiarism

I found source code plagiarism a year ago and reported this case to BMC Systems Biology: I listed source code of many functions that are exactly copied from GOSemSim with only function name changed in my email. The detail of source code plagiarism can also be found at Proper use of GOSemSim. Read More: 9738 Words Totally

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drat 0.0.4: Yet more features and documentation

A new version, now at 0.0.4, of the drat package arrived on CRAN yesterday. Its name stands for drat R Archive Template, and it helps with easy-to-create and easy-to-use repositories for R packages, and is finding increasing by other projects. Versio...

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R Recipe: Aligning Axes in ggplot2

May 27, 2015
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R Recipe: Aligning Axes in ggplot2

Faceted plots in ggplot2 are phenomenal. They give you a simple way to break down an array of plots according to the values of one or more categorical variables. But what if you want to stack plots of different variables? Not quite so simple. But certainly possible. I gathered together this solution from a variety The post R Recipe:...

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the Flatland paradox [#2]

May 26, 2015
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the Flatland paradox [#2]

Another trip in the métro today (to work with Pierre Jacob and Lawrence Murray in a Paris Anticafé!, as the University was closed) led me to infer—warning!, this is not the exact distribution!—the distribution of x, namely since a path x of length l(x) will corresponds to N draws if N-l(x) is an even integer

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Respecting Real-World Decision Making and Rejecting Models That Do Not: No MaxDiff or Best-Worst Scaling

May 26, 2015
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Respecting Real-World Decision Making and Rejecting Models That Do Not: No MaxDiff or Best-Worst Scaling

Utility has been reified, and we have committed the fallacy of misplaced concreteness.As this link illustrates, Sawtooth's MaxDiff provides an instructive example of reification in marketing research. What is the contribution of "clean bathrooms" ...

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A quick, incomplete comparison of ggplot2 & rbokeh plotting idioms

May 26, 2015
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A quick, incomplete comparison of ggplot2 & rbokeh plotting idioms

I set aside a small bit of time to give rbokeh a try and figured I’d share a small bit of code that shows how to make the “same” chart in both ggplot2 and rbokeh. What is Bokeh/rbokeh? rbokeh is an htmlwidget wrapper for the Bokeh visualization library that has become quite popular in Python

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New package on CRAN: lamW

May 26, 2015
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Recently, in various research projects, the Lambert-W function arose a number of times. Somewhat frustratingly, there is no built-in function in R to calculate it. The only options were those in the gsl and LambertW packages, the latter merely importing the former. Importing the entire GNU Scientific Library (GSL) can be a bit of a Read the full article...

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