6178 search results for "git"

My Commonly Done ggplot2 graphs: Part 2

December 18, 2014
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My Commonly Done ggplot2 graphs: Part 2

In my last post I described some of my commonly done ggplot2 graphs. It seems as though some people are interested in these, so I was going to follow this up with other plots I make frequently. Scatterplot colored by continuous variable The setup of the data for the scatterplots will be the same as

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htmlwidgets: JavaScript data visualization for R

December 18, 2014
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htmlwidgets: JavaScript data visualization for R

Today we’re excited to announce htmlwidgets, a new framework that brings the best of JavaScript data visualization libraries to R. There are already several packages that take advantage of the framework (leaflet, dygraphs, networkD3, DataTables, and rthreejs) with hopefully many more to come. An htmlwidget works just like an R plot except it produces an interactive web

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Curling – exploring web request options

December 18, 2014
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rOpenSci specializes in creating R libraries for accessing data resources on the web from R. Most times you request data from the web in R with our packages, you should have no problem. However, you evenutally will run into problems. In addition, there are advanced things you can do modifying requests to web resources that fall in the advanced...

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Gini coefficient, concentration measurement: an implementation in R

December 17, 2014
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Gini coefficient, concentration measurement: an implementation in R

Another subject we took in the statistics class was the Gini index. Gini index or ratio or coefficient is used to calculate how much a certain transferable phenomenon such as income or stocks for instance, is concentrated. For example, say you are evaluating a company and you’d like to know more about how the shares are divided among...

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Pearson’s chi-squared test: a simple implementation in R (test of independence)

December 17, 2014
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Pearson’s chi-squared test: a simple implementation in R (test of independence)

Hi everyone! Today I found my old statistics workbooks and start wondering what I could get out of them. Statistics can look pretty boring when using only pen and paper, since many times you’re just making a lot of repetitive calculations. However, the results of those calculations might of course be interesting. Person’s chi-squared test is a simple...

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R code coverage support via docker

December 17, 2014
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R code coverage support via docker 2014-12-17 Source In my previous post , I used a R with built-in code coverage to compute the code coverage of some packages. Today I will show you how to install and use such a R with code coverage support. I just created a public docker container that provides this patched R. If you do not...

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Preferring a preference index

December 17, 2014
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Preferring a preference index

I’ve been reading about preference indexes lately, specifically for characterising pollinator preferences for plants, so here is what I learnt. Preference is defined as using an item (e.g. plant) more than expected given the item abundance. First I like to use … Continue reading →

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New R package for electricity forecasting

December 17, 2014
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Shu Fan and I have developed a model for electricity demand forecasting that is now widely used in Australia for long-term forecasting of peak electricity demand. It has become known as the “Monash Electricity Forecasting Model”. We have decided to release an R package that implements our model so that other people can easily use it.

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More Snowdoop Coming

December 16, 2014
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More Snowdoop Coming

In spite of the banter between Yihui and me, I’m glad to hear that he may be interested in Snowdoop, as are some others.  I’m quite busy this week (finishing writing my Parallel Computation for Data Science book, and still have a lot of Fall Quarter grading to do :-) ), but you’ll definitely be … Continue reading...

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Introducing V8: An Embedded JavaScript Engine for R

December 16, 2014
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Introducing V8: An Embedded JavaScript Engine for R

JavaScript is an fantastic language for building applications. It runs on browsers, servers and databases, making it possible to design an entire web stack in a single language. The OpenCPU JavaScript client already allows for calling R functions from JavaScript (see jsfiddles and apps). With the new V8...

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