[R] Set without argument

[Christophe Genolini]

Thanks a lot
> The 'usual' way to write the above code is
>
>   
>> a <- imputeMyObj(a)
>>     
:-(
I was hopping something like the use of the superassignator <<- inside 
imputeMyObj (I was hoping even if I did not find it myself)...
To bad.

But thanks for teaching me 'usual' pratice. It is something that is not 
so easy to find in toturial, and as medium level programmer, it is not 
always clear to pick the good way when we hesitate between two...

Christophe