2029 search results for "ggplot"

Debugging parameter mismatch across RAC database instances with R, dba_hist, and gv$parameter

October 9, 2012
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Debugging parameter mismatch across RAC database instances with R, dba_hist, and gv$parameter

Did you find this post useful?  Does your organization need Oracle services?  We can help.   Much of this morning went into investigating strange ADDM reports on a two-node Oracle RAC database.  For some reason, there were statistically improbable differences…Read more ›

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In case you missed it: September 2012 Roundup

October 8, 2012
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In case you missed them, here are some articles from September of particular interest to R users. You can now browse the R-devel sources and changelogs at GitHub. R is used to create a 3-D animation of the Antarctic ice cap. At the DataWeek SF conference, R users from eBay, Intuit, Minted and other companies describe how R is...

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DIY ZeroAccess GeoIP Analysis : So What?

October 8, 2012
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DIY ZeroAccess GeoIP Analysis : So What?

NOTE: A great deal of this post comes from @jayjacobs as he took a conversation we were having about thoughts on ways to look at the data and just ran like the Flash with it. Did you know that – if you’re a US citizen – you have approximately a 1 in 5 chance of getting the

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EDA Before CDA

October 6, 2012
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EDA Before CDA

One Paragraph Summary Always explore your data visually. Whatever specific hypothesis you have when you go out to collect data is likely to be worse than any of the hypotheses you’ll form after looking at just a few simple visualizations of that data. The most effective hypothesis testing framework in existence is the test of

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Style your R charts like the Economist, Tableau … or XKCD

October 5, 2012
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Style your R charts like the Economist, Tableau … or XKCD

As we noted last month, the new Themes feature in ggplot2 helps you customize the design of R charts to your liking. Now, R user Jeffrey Arnold has built on this feature to create standardized themes to make R graphics looks like those from major publications and other software systems. You can use his ggthemes package to make your...

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DIY ZeroAccess GeoIP Plots

October 5, 2012
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DIY ZeroAccess GeoIP Plots

Since F-Secure was #spiffy enough to provide us with GeoIP data for mapping the scope of the ZeroAccess botnet, I thought that some aspiring infosec data scientists might want to see how to use something besides Google Maps & Google Earth to view the data. If you look at the CSV file, it’s formatted as

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its the Gramma an punctuashun wot its’ about, Rgiht?

October 4, 2012
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its the Gramma an punctuashun wot its’ about, Rgiht?

This is another of those confluence style posts, where a handful of things I’ve read in quick succession seem to phase lock in my mind: (brought to mind in part via @downes a week or so ago: How to Synch 32 Metronomes) The first was a post by Alan Levine on Making Text Work, which

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Presidential Debates with qdap-beta

October 4, 2012
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Presidential Debates with qdap-beta

qdap brief intro For the past year I’ve been working on a package (qdap) to assist my field in quantitative discourse analysis; basically looking at patterns in language. It’s still a ways from being finished and lacks documentation (roxygen2 is … Continue reading →

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Parse pdf files with R (on a Mac)

October 4, 2012
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Inspired by this blog post from theBioBucket, I created a script to parse all pdf files in a directory. Due to its reliance on the Terminal, it’s Mac specific, but modifications for other systems shouldn’t be too hard (as a start for Windows, see BioBucket’s script). First, you have to install the command line tool

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Transforming a color scale

October 3, 2012
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Transforming a color scale

In developing plots, I often use color (or “colour” in ggplot2 parlance) to reflect values of a third, non-X/Y, variable. Depending on the distribution of this Z variable, however, the effective color range can be narrow, making it difficul...

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