2214 search results for "Map"

You’ve got the whole world in your portfolio

December 29, 2011
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You’ve got the whole world in your portfolio

A famous finance professor once told us that good diversification meant holding everything in the world. Fine, but in what proportion? Suppose you could invest in every country in the world. How much would you invest in each? In a market-capitalization weighted index, you'd invest in each country in proportion to the market value of its investments (its "market capitalization")....

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Benchmarking time series models

December 29, 2011
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Benchmarking time series models

This is a quick post on the importance of benchmarking time-series forecasts.  First we need to reload the functions from my last few posts on times-series cross-validation.  (I copied the relevant code at the bottom of this post so you don't...

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dcemriS4 0.46

December 29, 2011
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dcemriS4 0.46

The R package dcemriS4 provides routines for the quantitative analysis of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), along with quantification of diffusion-weighted MRI (ADC = apparent diffusion coefficient) and quantitative T2 map...

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Weecology can has new mammal dataset

December 29, 2011
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Weecology can has new mammal dataset

So the Weecology folks have published a large dataset on mammal communities in a data paper in Ecology.  I know nothing about mammal communities, but that doesn't mean one can't play with the data...Their dataset consists of five csv files: &...

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Weecology can has new mammal dataset

December 29, 2011
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Weecology can has new mammal dataset

So the Weecology folks have published a large dataset on mammal communities in a data paper in Ecology.  I know nothing about mammal communities, but that doesn't mean one can't play with the data... Their dataset consists of five csv fil...

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Weecology can has new mammal dataset

December 29, 2011
By
Weecology can has new mammal dataset

So the Weecology folks have published a large dataset on mammal communities in a data paper in Ecology.  I know nothing about mammal communities, but that doesn't mean one can't play with the data... Their dataset consists of five csv fil...

Read more »

Magnetic Resonance Imaging in R

December 29, 2011
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Volume 44 of the Journal of Statistical Software was published in October 2011.  The special volume on “Magnetic Resonance Imaging in R” features articles and packages related to a variety of imaging modalities:functional MRIdiffusion-weighted MRIdynamic contrast-enhanced MRIdynamic susceptibility-contrast MRI structural MRIThe papers describe the methodology, software implementation and provide comprehensive examples and data. ...

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googleVis 0.2.13: new stepped area chart and improved geo charts

December 23, 2011
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googleVis 0.2.13: new stepped area chart and improved geo charts

On 7th December Google published a new version of their Visualisation API. The new version adds a new chart type: Stepped Area Chart and provides improvements to Geo Chart. Now Geo Chart has similar functionality to Geo Map, but while Geo Map requires ...

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December 2011 issue of the R Journal: An overview

December 20, 2011
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December 2011 issue of the R Journal: An overview

The December 2011 issue of the R Journal is now available for download. Three times a year, the open-access journal of the R project publishes peer-reviewed articles on research and applications of R and R packages. As of the latest issue, all articles are published under a Creative Commons license, making them accessible for translation, academic and commercial uses...

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Spatial Data with R

December 19, 2011
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Spatial Data with R

On September 14th 2011 Dr Alec Stephenson gave a talk on exploring spatial data with R (see Meetup page). The video of the talk is now available online. The talk provides a non-mathematical and entirely equation-free talk on visualizing and … Continue reading →

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