[R] change default measurement unit to millimetre

[Jim Lemon]

e-letter wrote:
> Readers,
>
> How do I configure R so that all units of measurement are in
> millimetres? For example if I want to set the width of a graph, I want
> to write:
> width=100
> and R interprets this value as millimetres.
>
>   
Hi e-letter,
If you just want a quick hack:

mm2in<-function(mm) return(mm/25.4)

then

width=mm2in(100)

Jim