Keeping trailing zeros
I would like to keep trailing zeros, for example, if I type:
round(5.2, 3)
I would like the output to be:
5.200
If this is for printing purposes, sprintf is what you are after:
> sprintf("%.3f", round(5.2,3))
[1] "5.200"
See ?sprintf for formatting details.
When you print it out, you should be able to do:
formatC( round( 5.2, 3 ), format='f', digits=3 )