I was trying to put some inequality constraints in the solnp package. But whenever I put them into the package. It just showed that there is unused arguments in it. So can anyone give me a simple example with inequality constraints !!!!??? i want to know the right form of writing the inequality constraints!!! thanks a lot!!! -- View this message in context: http://r.789695.n4.nabble.com/Rsonlp-package-about-how-to-use-optional-ineqfun-tp4539612p4539612.html Sent from the R help mailing list archive at Nabble.com.