Automated Analysis of FRET Figure 7. The cluster analysis of RhoA activity in a representative stationary cell. All the labeling and description are the same as in Figure 6, except that there is a lack of migration direction available for these stationary cells. doi:10.1371/journal.pone.0004082.g007 PLoS ONE | www.plosone.org 10 December 2008 | Volume 3 | Issue 12 | e4082