Newbie question on precision
Paul Evans wrote:
How can I get R to change the default precision value? For example:
x=0.99999999999999999 1-x
[1] 0 Is there a way that I can get a non-zero value using some parameter, or some package? many thanks.
The 'gmp' package allows calculation with arbitrary precision rationals (and every finite-digit decimal is a rational). See a recent post of mine, listing some gmp examples: http://tolstoy.newcastle.edu.au/R/e9/help/10/01/0579.html