Hello, Within the development of a package, I would need to build a specific method for the "pmin" function. I first make "pmin" generic pmin <- function (..., na.rm = FALSE) UseMethod("pmin") pmin.default <- base::pmin Now, within my new method, I would like to change the arguments in . (dot dot dot) before sending it to the NextMethod. pmin.myobject <- function(., na.rm=FALSE){ args <- list(.) # Here, I change my args. For example: args <- lapply(args, function(x) x + 1) # and now, I would like to use NextMethod, and then rebuild the . from the args NextMethod() #??? } It does not work, because the "args" is not the DotDotDot. If you see what I mean. Could you please help? Thank you. [[alternative HTML version deleted]]