R-bloggers.com is now three years young. The site is an (unofficial) online journal of the R statistical programming environment, written by bloggers who agreed to contribute their R articles to the site. Last year, I posted on the top 24...

Perhaps you have a file written in Markdown with embedded R of the kind that RStudio makes so nice and easy but you’d like a range of output formats to keep your collaborators happy. Say latex, pdf, html and MS Word. Here’s what you might do I shall imagine your file is called doc.Rmd Install pandoc

Consider a Poisson process , with non-homogeneous intensity . Here, we consider a deterministic function, not a stochastic intensity. Define the cumulated intensity in the sense that the number of events that occurred between time and is a random variable that is Poisson distributed with parameter . For example, consider here a cyclical Poisson process, with intensity lambda=function(x) 100*(sin(x*pi)+1) To compute...

Estimating a least squares linear regression model with fixed effects is a common task in applied econometrics, especially with panel data. For example, one might have a panel of countries and want to control for fixed country factors. In this case the researcher will effectively include this fixed identifier as a factor variable, and then proceed to