[1] Berchenko, Yakir, Jonathan Rosenblatt, and Simon D. W. Frost. "Modeling and Analysing Respondent Driven Sampling as a Counting Process." arXiv:1304.3505, April 11, 2013. http://arxiv.org/abs/1304.3505.
library(devtools)
install_github("johnros/chords", subdir='pkg/chords')
library(chords)