Blog Archives

Canterbury Earthquakes part II

September 7, 2010
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Canterbury Earthquakes part II

Since posting last night, there's been several more aftershocks, including several big ones. The total now stands (at 7:00pm) at 304 aftershocks, 70 greater than 4 on the Richter scale, 29 greater than 4.5, and 10 greater than 5. A couple of the fives ...

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Canterbury Earthquakes part II

September 7, 2010
By
Canterbury Earthquakes part II

Since posting last night, there's been several more aftershocks, including several big ones. The total now stands (at 7:00pm) at 304 aftershocks, 70 greater than 4 on the Richter scale, 29 greater than 4.5, and 10 greater than 5. A couple of the fives ...

Read more »

Less than negative?

September 6, 2010
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An interesting thing that I found while doing the analysis for my previous post on the Canterbury earthquakes, was the difficulty of constraining figures less than a negative number. For example:abcd> a 1 2 3 4 5 6 7 8 9 10> b 4 5 6> c TRUE...

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Less than negative?

September 6, 2010
By

An interesting thing that I found while doing the analysis for my previous post on the Canterbury earthquakes, was the difficulty of constraining figures less than a negative number. For example:abcd> a 1 2 3 4 5 6 7 8 9 10> b 4 5 6> c TRUE...

Read more »

Canterbury Earthquake

September 6, 2010
By
Canterbury Earthquake

4:35 am on Saturday morning, I was woken up by a 7.1 magnitude earthquake, the epicentre being approximately 30 km west of where I live in Christchurch, New Zealand. The earthquake was one of the largest that New Zealand has experienced, and has been the most destructive one since the earthquake that struck Napier in 1931. Thankfully, the...

Read more »

Canterbury Earthquake

September 6, 2010
By
Canterbury Earthquake

4:35 am on Saturday morning, I was woken up by a 7.1 magnitude earthquake, the epicentre being approximately 30 km west of where I live in Christchurch, New Zealand. The earthquake was one of the largest that New Zealand has experienced, and has been the most destructive one since the earthquake that struck Napier in 1931. Thankfully, the...

Read more »

apply functions in R

August 31, 2010
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Getting to know the "apply"s in R is extremely handy for using the language efficiently and effectively. Unfortunately, the help files tend to be rather information-dense and are fairly overwhelming for newcomers. A recent blog post by Neil Saunders pr...

Read more »

apply functions in R

August 31, 2010
By

Getting to know the "apply"s in R is extremely handy for using the language efficiently and effectively. Unfortunately, the help files tend to be rather information-dense and are fairly overwhelming for newcomers. A recent blog post by Neil Saunders pr...

Read more »

Phylogenetic trees online

August 20, 2010
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The other day, an article was published in PLoS One describing a newly developed JavaScript library to visualise phylogenetic trees online: jsPhyloSVG. It's pretty nifty, and there's some pretty cool functionality that you can build into the trees. It's all based on the PhyloXML standard for describing phylogenetic trees and networks, but can display trees...

Read more »

Phylogenetic trees online

August 20, 2010
By

The other day, an article was published in PLoS One describing a newly developed JavaScript library to visualise phylogenetic trees online: jsPhyloSVG. It's pretty nifty, and there's some pretty cool functionality that you can build into the trees. It's all based on the PhyloXML standard for describing phylogenetic trees and networks, but can display trees...

Read more »