3363 search results for "map"

Share and access R code, data, apps on ocpu.io

February 12, 2014
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Share and access R code, data, apps on ocpu.io

ocpu.io is a new domain for publishing code, data and apps based on the OpenCPU system. Any R package on Github is directly available via yourname.ocpu.io. Thereby the package can be used remotely via the OpenCPU API to access data, perform remote function calls, reproduce results, publish webapps, and much more....

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There is no Such Thing as Biomedical "Big Data"

February 11, 2014
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There is no Such Thing as Biomedical "Big Data"

At the moment, the world is obsessed with “Big Data” yet it sometimes seems that people who use this phrase don’t have a good grasp of its meaning.  Like most good buzz-words, “Big Data” sparks the idea of something grand and complicated, while sounding ordinary enough that listeners feel like they have an intuitive understanding of the concept.  However...

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Who Touched My Shiny-app?

February 11, 2014
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When we created a Shiny-app, deployed it on a server and open it to public, we must have interesting of who visited our app, and if possible, where they from and what they have done. To achieve this, we need a user behavior tracking feature if we are not using the commercial version: Shiny-server pro. I wrote a JavaScript...

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The Sound Of Mandelbrot Set

February 11, 2014
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The Sound Of Mandelbrot Set

Music is the pleasure the human soul experiences from counting without being aware that it is counting (Gottfried Leibniz) I like the concept of sonification: translating data into sounds. There is a huge amount of contents in the Internet about this technique and there are several packages in R to help you to sonificate your

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oce runlm function

February 11, 2014
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oce runlm function

Introduction As was expected, the runderiv() function has been both useful and deficient. Useful because it offers a good replacement for smooth.spline() calculations of derivatives for things like N^2. And deficient because it only calculated derivatives, not values! Both an extension and a renaming were called for. The result is runlm(). Tests Below are the examples from its manpage, with...

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DailyMeteo.org – 2014 Conference

February 10, 2014
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DailyMeteo.org – 2014 Conference

Our friend Stefan has been participating in MilanoR since the beginning, and was one of the people who started using R intensively after the "Introduction to R" Quantide course. Since he is from Belgrade (Serbia), and takes part in the … Continue reading →

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rOpenSci developer meeting in March

February 10, 2014
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Our team has been cranking out a large number of tools over the past several months. As regular readers are aware, our software packages provide programmatic access to a diverse and extensive trove of scientific data. More recently we’ve expanded our efforts to build more general purpose and cross-domain tools. These include tools for reading, writing, integrating and publishing...

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N2 with runlm()

February 9, 2014
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N2 with runlm()

Introduction The default swN2() calculation in Oce uses a smoothing spline. One disadvantage of this is that few readers will know how it works. A possible alternative is to compute d(rho)/dz using the slope inferred from a running-window linear regression. Such a slope is provided by the new Oce function runlm(), which is tested here. (Note...

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In case you missed it: January 2014 roundup

February 5, 2014
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In case you missed them, here are some articles from January of particular interest to R users: Princeton’s Germán Rodríguez has published a useful “Introduction to R” guide, with a focus on linear and logistic regression. The rxDForest function in the RevoScaleR package fits random forests of histogram-binning trees. A tutorial on using the xts package to analyze and...

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Use Case: Spatial R & Google Earth for Terrain Analyses

February 5, 2014
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Use Case: Spatial R & Google Earth for Terrain Analyses

I'd like to share code that uses spatial R and Google Earth for terrain analyses. In this example I took SRTM data at 1" resolution from http://www.viewfinderpanoramas.org/dem3.html#alps read it into R did a little processing and finally wrapped it up ...

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