Early this semester, I worked on complementing my visualization of the Respondent-Driven Sampling (RDS) process presented in this post to illustrate its evolution over time. That was how the second version was created, which is displayed here.

Please refer to the earlier post for detailed description of the main functionality. The second version implements an additional view of the process, which plots the portion of the underlying network as discovered by the RDS process over time. To switch to an alternate view at any time, press the change view button. The wide pink horizontal line in the alternate view marks the true population mean.

What the new view allows to explore is the structure of the process as a function of time (survey wave). It has proved very helpful in our work on the related estimation problem, as described here.

The visualization has been developed in Processing, with the generous and insightful support of my advisor Joe Blitzstein.

Tags: Anchor Process, estimation, Joe, Processing, RDS, visualization

This entry was posted on Sunday, March 27th, 2011 at 2:44 am and is filed under Research, Software. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.