Risk matrix in R (interesting readings)

1) Risk matrix examples http://davidmeza1.github.io/2015/12/17/2015-12-17-Creating-a-Risk-Matrix-in-R.html

2) Use ggrepel instead of jitter  https://cran.r-project.org/web/packages/ggrepel/vignettes/ggrepel.html
 for multiple points.

3)  Is there ggrepel for Excel (?) http://stackoverflow.com/questions/30294041/excel-bubble-chart-overlapping-data-label