OpenCPU provides a full RESTful RPC interface to R. It provides a convenient API to publish, and call R functions. However, a recurring question is “Can I also just run a block of R code?” Of course you can! We created a simple app to illustrate how to do this: http://beta1.opencpu.org/apps/opencpu.demo/runcode/. In this post...
Posts Tagged ‘ R bloggers ’
R packages and webapps using OpenCPU
Last time we demonstrated with a simple example how to publish a function to OpenCPU that generates an on-demand plot. In this post we will take the next step: we put the R function into an R package and made an ‘app’ for it. We use an example that was contributed by Thomas Zumbrunn...
R-Code Yahoo Finance Data Loading
Quantitative Finance, Technical Trading & Analysis. Fotis Papailias, Dimitrios Thomakos Fotis Quantitative Finance & Technical Trading R-Code Yahoo Finance Data Loading
Here is an R script that downloads Yahoo Finance Data without the need of additional packages/libraries. Particularly, this makes the downloading even faster. In the .zip file is the code with an example...
Welcome Back, Me
It's been a few weeks since I last posted. Sorry about that. Unfortunately, sometimes you come home from work just not wanting to look at a computer.I'm working on a series of posts requested by a few friends. They would like to see m...
Retrieving RSS Feeds Using Google Reader
I have been working on a new package makeR to help manage Sweave projects where you wish to create multiple versions of documents that are based on a single source. For example, I create lots of monthly and quarterly reports using Sweave and the only differences between versions are a few variables. I have used...
1500th, 3000th, &tc
As the ‘Og reached its 1500th post and 3000th comment at exactly the same time, a wee and only mildly interesting Sunday morning foray in what was posted so far and attracted the most attention (using the statistics provided by wordpress). The most visited posts: Title Views Home page 203,727 In{s}a(ne)!! 7,422 “simply start...
Improved Moving Average using intra-day EUR/USD FOREX
Quantitative Finance, Technical Trading & Analysis. Fotis Papailias, Dimitrios Thomakos Fotis Quantitative Finance & Technical Analysis Improved Moving Average using intra-day EUR/USD FOREX
Hi everyone, Here we present the graphical illustrations from two cases that our improved moving average method provides better results compared to the rest. You can find the R-code here (is...
Improved Moving Average Code is available for download!
Quantitative Finance, Technical Trading & Analysis. Fotis Papailias, Dimitrios Thomakos Fotis Quantitative Finance & Technical Analysis Improved Moving Average Code is available for download!
Hi everyone, in the last few days we have received great feedback from you. Due to increasing demand we have made a short version of the original code available for...
quantum forest
Thanks to a link on R-bloggers, I was introduced to Luis Apiolaza’s blog, Quantum Forest, which covers data analyses and R comments he encounters in his research as a quantitative forester/geneticist. And he works at the University of Canterbury, Christchurch, where I first taught from Bayesian Core in 2006. Which may be why he...
Plotting grouped data vs time with error bars in R
This is my first blog since joiningR-bloggers. I’m quite excited to be part of this group and apologize if I boreany experienced R users with my basic blogs for learning R or offendprogrammers with my inefficient, sloppy coding. Hopefully writing for...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).