[datatable-help] Have monthly data, need log of the difference. How?

[ellie]

So I have monthly data in an excel file, but what I need to make my
calculations in the natural log of the difference. Is there a built in
function in R that will let me transform my data this way, or do I need to
do it in excel before importing the data to R?

Thanks!



--
Sent from: http://r.789695.n4.nabble.com/datatable-help-f2315188.html