search for: zone92__

...============================= Dear All, I'm looking for_a way on computing the derivative of first and second order_of a smoothing curve produced by a nonprametric regression. For instance, if we run the R script below, a smooth nonparametric regression curve is produced. provide.data(trawl) Zone92__ <- (Year == 0 & Zone == 1) Position <- cbind(Longitude - 143, Latitude) dimnames(Position)[[2]][1] <- "Longitude - 143" sm.regression(Longitude, Score1, method = "aicc", col = "red",_ model = "linear") Could someone please give some hints_on the...