Hello, > > I must be missing something very obvious, but I just cannot see it. > The hardest to find errors. Wrong manual calculation in t1, powers have precedence right to left and before additions.
t1b <- 10^(params[1]-xx)^params[2] t3b <- 1 + t1b t4b <- t2/t3b t5b <- params[4] + t4b all.equal(yy, t5b) TRUE Hope this helps, Rui Barradas -- View this message in context: http://r.789695.n4.nabble.com/strange-differences-in-vector-operation-versus-manual-calculation-tp4603600p4603707.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
