Simon Thelwall

All excellent points. Some thoughts below. 1. I had wondered about this. I'll confess that I don't fully understand interactions in R. I think we would want some way to...

I think that works really nicely. One thing I noticed is that the upper confidence interval does not appear to be formateted to two dp. 

I don't know if I was doing something wrong, or whether it was something else, I just had to update R to 3.3.2 and reinstall all my libraries. When trying...