I developed a simple graphic in R using GGJOY (an offshoot of GGPLOT2) that presents all the distributions of first dimension of House common space DW-NOMINATE scores.

I prepared a Markdown document with the source code and results.  I’ll try to reproduce that document here; for the moment, I published it in RPubs and you can find it at this link:

GGJOY seems to work quite well for time lapse presentation of distributions.