Re: [R] Computational differences in R vs Excel

On Nov 19, 2013, at 6:02 AM, S Ellison wrote: >>> For example, i am performing this simple arithmetic: >>>23-(1.346493052*16)+(.663965156*11)+(.008569426*5)-15.23480728 >>> >>> R gives the result --> -6.432232271 > > > My machine (win32, R 3.0.1) gives -6.432232266 > > Something about you

Re: [R] Computational differences in R vs Excel

> > For example, i am performing this simple arithmetic: > > 23-(1.346493052*16)+(.663965156*11)+(.008569426*5)-15.23480728 > > > > R gives the result --> -6.432232271 My machine (win32, R 3.0.1) gives -6.432232266 Something about your machine, or typing, is different. It shouldn't be R, a

Re: [R] Computational differences in R vs Excel

There are several problems here. The first is that it's rather unlikely you really need 10-place accuracy to fit your data. This suggests you may be doing something inappropriate such as fitting the wrong function or trying to extrapolate. Since you haven't explained what "process" you have th