On Wed, 24 Nov 2004 12:26:46 -0500, "Heather J. Branton" <[EMAIL PROTECTED]> wrote :
>Dear R-users, > >I have a basic question about how to determine the antilog of a variable. > >Say I have some number, x, which is a factor of 2 such that x = 2^y. I >want to figure out what y is, i.e. I am looking for the antilog base 2 of x. > >I have found log2 in the Reference Manual. But I am struggling how to >get the antilog of that. You seem to be confusing log with antilog, but log2(x) and 2^y are inverses of each other, i.e. log2(2^y) equals y and 2^log2(x) equals x (up to rounding error, of course). Duncan Murdoch ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
