[R] How do I format something as "0.000"?

[Michael Prager]

Christian Hennig wrote:

>I would like to use the format function to get numbers all with three 
>digits to the right of the decimal point, even in cases where there is no
>significant digit left. For example, I would like to get
>c(0.3456789,0.0000053) as "0.346" "0.000".

I posted a fairly complete example of doing this some time ago.  If you 
search the list archives under my name, you should be able to find it. 
It's not at hand right now, or I would post it again.  The key was using 
formatC(), but my example had other little issues worked out as well.


MHP

-- 
Michael H. Prager, Ph.D.
Population Dynamics Team
NOAA Center for Coastal Habitat and Fisheries Research
NMFS Southeast Fisheries Science Center
Beaufort, North Carolina  28516  USA
http://shrimp.ccfhrb.noaa.gov/~mprager/