2662 search results for "ggplot2"

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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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...

Read more »

Top Songs by Artist on CD102.5 in 2013

December 26, 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, ...

Read more »

Sentence Drawing: Part II

December 23, 2013
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Sentence Drawing: Part II

In a recent blog post I introduced Stefanie Posavec‘s Sentence Drawings. We created this ggplot2 rendition: We left off weighing the aesthetics of the Sentence Drawing with information of quality visualizations. I asked others to think of ways to display … Continue reading →

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24 Days of R: Day 23

December 23, 2013
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24 Days of R: Day 23

Penultimate post, I'm going to take a quick look at the Gini indicator for wealth inequality. Data comes from the World Bank. I've downloaded the zipped file, decompressed it and given it a different name. I'm going to This will give us a decent set of data. How does this look when we plot it?

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How much faster is calibration with parallel processing and/or R byte-code compiling ?

December 20, 2013
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How much faster is calibration with parallel processing and/or R byte-code compiling ?

The Svensson model is a 6-factor yield curve model that has been derived from the Nelson-Siegel model in : Svensson, L. E. (1995). Estimating forward interest rates with the extended Nelson & Siegel method. Sveriges Riksbank Quarterly Review, 3(1) :13-26. … Continue reading →

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