[R] force fixed format

[David Brahm]

John Fox wrote:
> If the issue [of suppressing scientific notation] is general, try the scipen
> option:
>  > options(scipen=10)
>  > p <- 0.0001
>  > p
> [1] 0.0001

To explain further: R normally prints in scientific notation if it requires
fewer characters than standard notation.  By setting options(scipen=10), you
are imposing an addition 10-character SCIentific notation PENalty whenever this
comparison is made.  Negative values would favor scientific notation.
-- 
                              -- David Brahm (brahm at alum.mit.edu)