In R devel rev.66393 (2014-08-15) it was possible to do this: trace(optim, exit = quote(str(returnValue())))
but returnValue() does not seem to be available any more. The above was useful to get the output of a function when it was called deep within another function that I have no control over. Has this been replaced by some other equivalent function? P.S. This demonstrates that it no longer works. The error message is that it cannot find function 'returnValue`: > trace(optim, exit = quote(str(returnValue()))) Tracing function "optim" in package "stats" [1] "optim" > arima(presidents, order = c(1, 0, 0)) Tracing optim(init[mask], armafn, method = optim.method, hessian = TRUE, .... on exit Error in str(returnValue()) : could not find function "returnValue" -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel