[R] Special characters: plus/minus

[Smith, Phil]

Hi R people!

:-)

I am printing a table of percentages (P) and their 95% confidence
interval half-widths (CI).

I would like to 

(i) create a character string of P and CI that has the plus/minus
character to the left of CI, then

(ii) use write.csv to save that file with the P, CI and the special
plus/minus character.



I poured over the r-help archives and did not find advice on this. That
advice could be there, but I did not see it! 


Thank you!

Phil Smith
Centers for Disease Control and Prevention
Atlanta, GA