search for: resop

...<- params[2] t0 <- params[3] sigma <- params[4] lhat <- params[1]*(1-exp(-params[2]*(t-params[3]))) logL <- -sum(dnorm(log(l),log(lhat),sqrt(sigma),TRUE)) return(logL) } > resop <- optim(c(120, .1, 0, 1), fn, method="L-BFGS-B",lower=c(0.0, 0.001, 0.001,0.01) + ,upper = rep(Inf, 4), hessian=TRUE, control=list(trace=1)) Error: C stack usage is too close to the limit Thanks in advance. Running R on a Windows XP machine > version _...

Hello everyone, I''m using InstantRails 2.0 on a Windows XP 32 bit system. I''m developing a Rails application where I would like to execute a .bat file I''ve had a look around and this piece of code is suppose to do the trick but it does not seem to work. system(''path/to/file.bat'') Do I need to have some plugins/gems installed? Regards, McKenzie.