search for: estiomate

Hi I have some density estimates obtained from density(). I would like to calculate the sum of squares of these. As the x values of the estimates are not the same, and I would prefer not to restrict the estiomate to a certain range of x values, how can I do the calculation? Lets say: d1 <- density(Data1) d2 <- density(Data2) If the x values would be the same, I would: ssq <- sum( (d1$y - d2$y)^2 ) but as it isn't, I can't do that. is there an easy way to get the sum of squares? Than...