I have the following two xts object: https://dl.dropboxusercontent.com/u/102669/series1.rdata https://dl.dropboxusercontent.com/u/102669/series2.rdata With str i see that they are both xts objects I can't understand why it's impossible to compare each element. For example: series1 > series2 Why i don't get an xts object with a sequence of true and false?