3174 search results for "GIS"

A Beginner’s Look at Julia

July 23, 2013
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Over the past month or so, I’ve been playing with a new scientific programming language called ‘Julia‘, which aims to be a high-level language with performance approaching that of C. With that goal in mind, Julia could be a replacement for the ‘multi-language’ problem of needing to move between R, Python, MATLAB, C, Fortran, Scala, A Beginner’s Look...

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Vectors of S4 classes with non-trivial slots

July 22, 2013
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Vectors of S4 classes with non-trivial slots

Here’s another rabbit hole where I spent a bit of time this evening. I like OOP and I like the way R uses vectors. I’ve created a few classes and had started to code a function which would plot a set of them. It all seemed straightforward until I realized that the infrastructure for treating

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My first Bioconductor conference (2013)

July 21, 2013
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My first Bioconductor conference (2013)

The BioC 2013 conference was held from July 17 to 19. I attended this conference for my first time, mainly because I'm working at the Fred Hutchinson Cancer Research Center this summer, and the conference venue was just downstairs! No flights, no hotel...

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Read Excel files from R

July 21, 2013
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Many people still save their data into Microsoft Excel files. This is an unhappy choice for many reasons but many was already written about this topic. Furthermore, unfortunately Excel become a de facto standard in many business environment and this … Continue reading →

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iRefR – PPI data access from R

July 21, 2013
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iRefR – PPI data access from R

I use a lot of protein-protein interaction (PPI) data as biological networks represent the systems within which our genes and proteins of interest function. There are many sources of PPI data, including BioGRID and IntAct etc. A recent effort has … Continue reading →

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Real-Time Big Data Analytics: Emerging Architecture

July 19, 2013
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Real-Time Big Data Analytics: Emerging Architecture

O'Reilly Media has published a new whitepaper, Real-Time Big Data Analytics: Emerging Architecture. This 32-page document describes the processes and components necessary for getting on-demand information from big-data stores such as Hadoop. It answers the questions "How fast is fast?" and "How real is real-time?" and "how big is big?", and provides practical guidance for implementing real-time analytics systems....

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Create SQL Rules from rpart model

July 19, 2013
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Mapping output of rpart tree to SQL statements is not easy. In rpart package you have to print out rules and then manually write SQL CASE statement. Fortunately, we can write new function to do this job. To test the function, I will use dataset german...

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Lilac Bloomsday Run in Graphs

July 17, 2013
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Lilac Bloomsday Run in Graphs

The Lilac Bloomsday Run is a 7.46 miles (12 kms) race held annually in Spokane, Washington. The run was started in 1977 by Don Kardong and it saw 51,613 people register for it in 2013. In this post, I use R to collect data from their website, clean and...

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Evaluating the Potential Incorporation of R into Research Methods Education in Psychology

July 17, 2013
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I was recently completing some professional development activities that required me to write a report on a self-chosen topic related to diversity in student backgrounds. I chose to use the opportunity to reflect on the potential for using R to teach psychology students research methods. I thought I'd share the report in case it interests anyone. Abstract...

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Spatial Playtime

July 16, 2013
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There have been repeated calls for “space” in many fields of social science (all links are behind paywalls, sorry): Demography: (Voss 2007) Sociology: (Gieryn 2000) Epidemiology: for an early critical review (Jacquez 2000) Geography: obviously geographers were into space before it was cool. A couple of pieces I like are Doreen Massey’s book, For Space… Continue reading →

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