1783 search results for "Ggplot2"

Non overlapping labels on a ggplot scatterplot

February 22, 2012
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Non overlapping labels on a ggplot scatterplot

This is a very quick post just to share a quick tip on how to add non overlapping labels to a scatterplot in ggplot using a great package called directlabels. The trick is to make each point a single member group using an aesthetic like colour and then apply the direct.label function with the first.qp … Continue reading...

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Log File Analysis with R

February 21, 2012
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Log File Analysis with R

 R often comes up in discussions of heavy duty scientific and statistical analysis (and so it should).  However, it is also incredibly handy for a variety of more routine developer activities.   And so I give you… log file analysis with R!  I was just involved in the launch of gradesquare.com (go ahead – click...

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polar histogram: pretty and useful

February 21, 2012
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polar histogram: pretty and useful

Do you have tens of histograms to show but no room to put them all on the page? As I was reading this paper in Nature Genetics, I came across a simple and clever way of packing all this information … Continue reading →

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Upcoming Statistics.com courses on the use of R (all online)

February 20, 2012
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Guest post:  Statistics.com is offering a list of courses about R from some of the leading experts in their fields.  They offer a $200 discount for anyone who orders any 3 courses from them at one time.  Here is the list of R specific courses (with links): Feb 10:  Introduction to R – Data Handling (http://bit.ly/z9k0vk) taught by Paul Murrell...

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Mid-February flotsam

February 17, 2012
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Mid-February flotsam

This coming Monday we start the first semester in Canterbury (and in New Zealand for that matter). We are all looking forward to an earthquake-free year; more realistically, I’d be happy with low magnitude aftershocks. The Wall Street Journal reports … Continue reading →

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Visualising Twitter User Timeline Activity in R

February 17, 2012
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Visualising Twitter User Timeline Activity in R

I’ve largely avoided “time” in R to date, but following a chat with @mhawksey at #dev8d yesterday, I went down a rathole last night exploring a few ways of visualising a Twitter user timeline and as a result also had a quick initial play with some time handling features of R, such as timeseries objects,

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Machine Learning for Hackers

February 16, 2012
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Machine Learning for Hackers

"Machine Learning for Hackers" is a new book from O'Reilly Media by Drew Conway and John Myles White. A "hacker", here, is "someone who likes to solve problems and experiment with new technologies", and "Machine Learning" is usually thought of as a black-box, algorithmic approach to producing predictions or classifications from data. This book, however, takes a pleasingly statistical...

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Revolution Newsletter: February 2012

February 15, 2012
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The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full February edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Revolution Analytics Welcomes New CEO, Dave Rich. Dave joins the Revolution team from Accenture...

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R-Bloggers Steadily Growing

February 15, 2012
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R-Bloggers Steadily Growing

Description: Number of blogs aggregated into the R-Bloggers news site. Data: http://www.r-bloggers.com/ Analysis: R-Bloggers is a website devoted to news and tutorials related to the R programming language. The content is generated by a growing ...

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If you have to use circles…

February 15, 2012
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If you have to use circles…

Stats Chat is an interesting kiwi site—managed by the Department of Statistics of the University of Auckland—that centers around the use and presentation of statistics in the media. This week there was an interesting discussion on one of those infographics … Continue reading →

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