David Winsemius <dwinsemius <at> comcast.net> writes: > > > On Jan 17, 2010, at 8:17 PM, maiya wrote: > > > > > There must be a very basic thing I am not getting... > > > > I'm working with some entropy functions and the convention is to use > > log(0)=0. > > > > I suppose the outcome of that effort may depend on whether you have > assumed the needed godlike capacities to change the laws of > mathematics. But I suppose that as the Earth mother that might occur > to you. Go ahead, define a new mathematics.
My guess is that the real intention here is to define 0*log(0) = 0 rather than log(0) = 0 -- really the assertion is that lim(x -> 0) x log(x) = 0, which must be true for some reasonable limiting conditions. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
