> But why not just > c(x[1], diff(x))/max(x) So simple! Thank you ever so much Berend. Best wishes, Ben -- View this message in context: http://r.789695.n4.nabble.com/error-in-self-made-function-cannot-deal-with-objects-of-length-1-tp3710555p3710646.html Sent from the R help mailing list archive at Nabble.com.