2423 search results for "ggplot"

Comparing the #code2013 results with the current TIOBE rankings

January 2, 2014
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Comparing the #code2013 results with the current TIOBE rankings

The TIOBE language rankings have always been controversial but in the absence of more meaningful metrics tends to be viewed as holy writ. Over the last few days of 2013 a hashtag was started by Twitter user @deadprogram called #code2013. The ...

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Pivoting Data in R Excel-style

January 2, 2014
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Pivoting Data in R Excel-style

(This article is referring to an initial proof-of-concept version of r-big-pivot) I have to admit that I very much enjoy pivoting through data using Excel. Its pivoting tool is great for getting a quick insight into a data set’s structure … Continue reading → The post Pivoting Data in R Excel-style appeared first on joy...

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Generalized linear models for predicting rates

January 1, 2014
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Generalized linear models for predicting rates

I often need to build a predictive model that estimates rates. The example of our age is: ad click through rates (how often a viewer clicks on an ad estimated as a function of the features of the ad and the viewer). Another timely example is estimating default rates of mortgages or credit cards. You Related posts:

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NFL Player Tree (Using R)

December 31, 2013
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NFL Player Tree (Using R)

NFL Player TreeInspired by the soccer player tree in an earlier post, I pulled some recent National Football League player attributes from EA Sports's Madden 25 (players ranked at least 95):I used R to do the heavy statistical lifting and used the pack...

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K-means Clustering 86 Single Malt Scotch Whiskies

December 30, 2013
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K-means Clustering 86 Single Malt Scotch Whiskies

by Luba Gloukhov The first time I had an Islay single malt, my mind was blown. In my first foray into the world of whiskies, I took the plunge into the smokiest, peatiest beast of them all — Laphroig. That same night, dreams of owning a smoker were replaced by the desire to roam the landscape of smoky single...

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Analyze your Google+ Posts with R [Update]

December 28, 2013
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Analyze your Google+ Posts with R [Update]

Hey everybody, today I show you how you can start working with the Google+ API and R. We create a personal API key, get our own stats and plot them in a nice looking graph. Get the API Key You can get our API key on the Google Developer console here: https://code.google.com/apis/console There you can see …

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Top Songs by Artist on CD102.5 in 2013

December 27, 2013
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Top Songs by Artist on CD102.5 in 2013

In a previous post, I showed you how to scrape playlist data from Columbus, OH alternative rock station CD102.5. Since it's the end of the year and best-of lists are all the fad, I thought I would share the most popular songs and artists of the year, a...

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Parallel processing with short jobs only increases the run time

December 27, 2013
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Parallel processing with short jobs only increases the run time

Parallel processing has become much more important over the years as multi-core processors have become common place. From version 02.14 onwards, parallel processing has become part of the standard R installation in the form of the parallel package. This package… See more ›

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Points, Polygons and Power Outages

December 27, 2013
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Points, Polygons and Power Outages

Most of my free coding time has been spent tweaking a D3-based live power outage tracker for Central Maine Power customers (there’s also a woefully less-featured Shiny app for it, too). There is some R associated with the D3 vis, but it’s limited to a cron job that’s makes the CSV files for the sparklines

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Coxcomb plots and ‘spiecharts’ in R

December 27, 2013
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Coxcomb plots and ‘spiecharts’ in R

I was contacted recently by a housing organisation who wanted an attractive visualisation of their finances, arranged in a circular form. Because there were two 4 continuous variables to include, all of which were proportions of each other, the client suggested a plot similar to a pie chart, but with each segment extending out a different radius from the segment. I realised...

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