Monthly Archives: August 2015

R Graphical Systems

August 24, 2015
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R Graphical Systems

Just had an article published over at Simple Talk about the 3 R Major R Graphical Systems:https://www.simple-talk.com/content/article.aspx?article=2271

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email graphs

August 24, 2015
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email graphs

Communication between individuals working on a group project is commonly carried over email, and in-person meetings tend to be preceded by an emailed agenda, and followed by emailed minutes. Projects organized around GitHub or similar systems tend also to have email updates for issue reports, etc. All of this means that a graph of email timing can be helpful in indicating...

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PDQ Version 6.2.0 Released

August 24, 2015
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PDQ Version 6.2.0 Released

PDQ (Pretty Damn Quick) is a FOSS performance analysis tool based on the paradigm of queueing models that can be programmed natively in R Python Perl C and several other languages. This minor release is now available for download. If you're new to PDQ, here's a simple queueing model...

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How R is used at Zillow to estimate housing values

August 24, 2015
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Zillow, the leading real estate and rental marketplace in the USA, uses R to estimate housing values. Zillow's signature product is the Zestimate, their estimated market value for individual homes, and it's calculated using R in a parallel batch job for 100 million homes nationwide. The process is described in this Slideshare presentation Data Science At Zillow by Nicholas...

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Five Interactive R Visualizations With D3, ggplot2, & RStudio

August 24, 2015
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Five Interactive R Visualizations With D3, ggplot2, & RStudio

Plotly has a new R API and ggplot2 library for making beautiful graphs. The API lets you produce interactive D3.js graphs with R. This post has five examples. Head to our docs to get a key and you can start making, embedding, and sharing plots. The code below produces our first plot. library(plotly) set.seed(100) d <- diamonds plot_ly(d, x = carat,

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New Pacakge “docxtractr” – Easily Extract Tables From Microsoft Word Docs

August 24, 2015
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New Pacakge “docxtractr” – Easily Extract Tables From Microsoft Word Docs

This is more of a follow-up from yesterday’s post. The hack and function in said post was fine, but it was limited to uniform tables and made you do more work than you had to. So, there’s now a devtools-installable package on github that makes it way easier to get information about the tables in

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RStudio adds a new Starter Plan, More Active Hours, and a Performance Boost to shinyapps.io

August 24, 2015
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RStudio adds a new Starter Plan, More Active Hours, and a Performance Boost to shinyapps.io

Five months ago we launched shinyapps.io. Since then, more than 25,000 accounts have been created and countless Shiny applications have been deployed. It’s incredibly exciting to see! It’s also given us lots of data and feedback on how we can make shinyapps.io better. Today, we’re happy to tell you about some changes to our subscription

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RcppDE 0.1.3

August 24, 2015
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A pure maintenance release 0.1.3 of the RcppDE package arrived on CRAN yesterday. RcppDE is a "port" of DEoptim, a popular package for derivative-free optimisation using differential optimization, to C++. By using RcppArmadillo, the code becomes a lot shorter and more legible. This version simply fixes a typo in the vignette metadata noticed by Kurt, and...

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[Updated] Statistical Power and Significance Testing Visualization

August 24, 2015
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My Statistical Power and Significance Testing Visualization now lets you vary effect size, sample size, power and significance level. There's also a new feature to rescale the plot and by clicking-and-dragging you can pan the visualization.

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Changing the font of R base graphic plots.

August 24, 2015
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Changing the font of R base graphic plots.

Want to change the font used in your R plots? I got a quite simple solution that works on Mac OS.You need the function 'quartzFonts'. With this function, you can define additional font families to use in your R base graphic plots. The default font fami...

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