[R] reverse truncate to extract only decimal values

hello there, Is there a way of truncating in the opposite direction so as to retain only the values to the right of the decimal?? i.e. rather than: trunc(39.5) [1] 39 i would get something like: revtrunc(39.5) [1] 0.5 I've been searching to no avail but I imagine there is a very simple

Re: [R] reverse truncate to extract only decimal values

You could do something like this: revtrunc - function(x) { x - floor(x) } revtrunc(39.5) [1] 0.5 But note: revtrunc(-39.5) [1] 0.5 I'm not sure what you'd want for negative numbers. One possibility: revtrunc - function(x) { sign(x) * (x - floor(x)) } revtrunc(39.5) [1] 0.5

Re: [R] reverse truncate to extract only decimal values

On Thu, Apr 16, 2009 at 10:30 PM, T.D.Rudolph prairie.pic...@gmail.com wrote: Is there a way of truncating in the opposite direction so as to retain only the values to the right of the decimal?? i.e. rather than: trunc(39.5) [1] 39 i would get something like: revtrunc(39.5) [1] 0.5

Re: [R] reverse truncate to extract only decimal values

On Thu, Apr 16, 2009 at 10:30 PM, T.D.Rudolph prairie.pic...@gmail.com wrote: hello there, Is there a way of truncating in the opposite direction so as to retain only the values to the right of the decimal?? i.e. rather than: trunc(39.5) [1] 39 i would get something like:

Re: [R] reverse truncate to extract only decimal values

This one really sheds light on that old adage ...When you can't see the forest for the trees! Sarah Goslee wrote: You could do something like this: revtrunc - function(x) { x - floor(x) } revtrunc(39.5) [1] 0.5 But note: revtrunc(-39.5) [1] 0.5 I'm not sure what you'd