(This article was first published on Memo's Island, and kindly contributed to R-bloggers) The creator of S language which R is derived from John Chambers said in one of his books Software for data analysis programming with R: ...This places an obligation on all creators of software to program in such away that the computations can be understood and trusted....
851 search results for "tutorial"
Mini-tutorial for Quandl: How to access financial data with R
by Joseph Rickert Quandl.com, the open source website for financial data, made rapid progress earlier this year in becoming an R friendly source for financial time series data. Tammer Kamel, Quandl’s founder introduced the site on Revolutions blog in late February as a “search engine” for numerical data and explained how Quandl’s “Q-bot” can take data from almost any...
Plotting average read and write operation size by ASM disk for Oracle
Throughput, throughput, throughput – for many databases, this is the performance measure of importance. When you are working with a fixed number of IOPS but see mixed workload types, system health can be assessed through the average read and…
Introducing GTrendsR
In a paper, to be soon published in Conservation Biology and entitle Googling trends in conservation biology, we developed a package named GTrendsR that provides an interface for retrieving and displaying the information returned online...
New book: Seamless R and C++ Integration with Rcpp
A new book from Dirk Eddelbuettel, co-author of the Rcpp package, is now available. Seamless R and C++ Integration with Rcpp can be ordered from Springer and from Amazon. The book provides the first comprehensive introduction to Rcpp, the R package that makes it easy to integrate C++ code with R and speed up R code. If you haven't...
Rickshaw d3.js from R with rCharts
Shutterstock’s open source Rickshaw provides a very nice tutorial to get started building interactive time series d3.js charts with Rickshaw. I just could not resist rebuilding the tutorial but this time ENTIRELY in R with the amazing packages slidify and rCharts. I have embedded the tutorial below,...
Better Neighborhoods with R: Exploring and Analyzing SeeClickFix Data (part 1)
Better Neighborhoods with R: Exploring and Analyzing SeeClickFix Data (part 1) The National Day of Civic Hacking took place …
Mahout for R Users
I have a few posts coming up on Apache Mahout so I thought it might be useful to share some notes. I came at it as primarily an R coder with some very rusty Java and C++ somewhere in the back of my head so that will be my point of reference. I’ve also included … Continue reading...
Quartiles, Deciles, and Percentiles
The measures of position such as quartiles, deciles, and percentiles are available in quantile function. This function has a usage,where:x - the data pointsprob - the location to measurena.rm - if FALSE, NA (Not Available) data points are not ignoredna...
Box-plot with R – Tutorial
(This article was first published on R Video tutorial for Spatial Statistics, and kindly contributed to R-bloggers) Yesterday I wanted to create a box-plot for a small dataset to see the evolution of 3 stations through a 3 days period. I like box-plots very much because I think they are one of the clearest ways of showing trend in...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
