3746 search results for "GIS"

Assign n Email Addresses to x Cells, Intrinsically (Part II)

March 27, 2014
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Part I showed the concept and general technique of a method of assigning n email addresses to x cells pseudo-randomly, without the need for maintaining a log of each assignment.The earlier post considered the basic case of each cell being assigned approximately the same quantity of email addresses. In practice, cell sizes often vary. Below is a technique that...

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Analysis of experiments using ASReml-R, Chicago, 24/25th April

March 27, 2014
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This workshop is aimed at scientist/practitioners that are interested in analyzing complex datasets by fitting linear mixed models, particularly users with experience in breeding programs and design and analysis of experiments. After the workshop the participants should be able to understand the use of ASReml and to analyze most biological experiment and particularly, study breeding trials for single or...

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Visualising Pandas DataFrames With IPythonBlocks – Proof of Concept

March 26, 2014
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Visualising Pandas DataFrames With IPythonBlocks – Proof of Concept

A few weeks ago I came across IPythonBlocks, a Python library developed to support the teaching of Python programming. The library provides an HTML grid that can be manipulated using simple programming constructs, presenting the outcome of the operations in a visually meaningful way. As part of a new third level OU course we’re putting

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CpG Island shelves

March 26, 2014
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Nowadays, regions with relatively lower CpG density are gaining importance in DNA methylation studies. This is based on the fact that a majority of CpG rich regions (CpG islands) are non-dynamic and less variant in terms of methylation status probed ac...

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A Thumbnail History of Ensemble Methods

March 25, 2014
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A Thumbnail History of Ensemble Methods

By Mike Bowles Ensemble methods are the backbone of machine learning techniques. However, it can be a daunting subject for someone approaching it for the first time, so we asked Mike Bowles, machine learning expert and serial entrepreneur to provide some context. Ensemble Methods are among the most powerful and easiest to use of predictive analytics algorithms and R...

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Sankey diagrams with googleVis

March 25, 2014
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Sankey diagrams with googleVis

Sankey diagrams are great for visualising flows from one set of data values to another. Although named after Irish Captain Matthew Henry Phineas Riall Sankey, who used this type of diagram in 1898 to show the energy efficiency of a steam engine, the best know Sankey diagram is probably Charles Minard's Map of Napoleon's Russian Campaign...

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R jobs (March 24th)

March 24, 2014
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Earlier this month I have announced the launch of R-users.com, a new R jobs website. My intention is to post around twice a month on new R jobs posted on the website. You are invited to use this link, to post new R jobs. Registration is less than 10 seconds. Here are the new R jobs:   Full-Time Data...

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Experimenting With R – Point to Point Mapping With Great Circles

March 24, 2014
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Experimenting With R – Point to Point Mapping With Great Circles

I’ve started doodling again… This time, around maps, looking for recipes that make life easier plotting lines to connect points on maps. The most attractive maps seem to use great circles to connect one point with another, these providing the shortest path between two points when you consider the Earth as a sphere. Here’s one

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Create Twitter Wordcloud with Sentiments

March 23, 2014
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Create Twitter Wordcloud with Sentiments

You can use this tutorial in the ThinkToStartR package with: ThinkToStart(“SentimentCloud”,”KEYWORD”,# of tweets,”DATUMBOX API KEY”) Hey everybody, some days ago I created a wordcloud filled with tweets of a recent german news topic. And a lot of people asked me if I have some code how I created this cloud. And so here it is. …

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Seamless analytical environment by WDI, dplyr, and rMaps

March 22, 2014
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Recently I found that My R Guru @ramnath_vaidya is developping a new visualization package rMaps. I was so excited when I saw it for the first time and I think that it's really awesome for plotting any data on a map....

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