Heather J. Branton <hjb <at> pdq.com> writes: : : Thank you so much for each of your responses. But to make sure I am : clear (in my own mind), is this correct? : : If x = 2^y : Then y = log2(x) : : Thanks again. I know this is basic.
Although its not a proof, you can still use R to help you verify such hypotheses. Just use actual vectors of numbers and check that your hypothesis, in this case y equals log2(x), holds. For example, R> # try it out with the vector 1,2,3,...,10 R> y <- 1:10 R> y [1] 1 2 3 4 5 6 7 8 9 10 R> # now calculate x R> x <- log2(y) R> # lets see what 2^x looks like: R> 2^x [1] 1 2 3 4 5 6 7 8 9 10 R> # it gave back y! ______________________________________________ [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
