Hello,I am estimating a system of nonlinear equation where I need to stack my vector of y. I have data of about 6000units. I tried using the rbind but instead of having a vector of 1 by 18000, it is giving me a 3 by 6000 so that my matrix multiplication is non-conformable. The stack command requires an identifier but in this case, I do not have a unique identifier. I would like to stack the the first 6000 units of y1 on the 2nd 6000 units of y2 and 6000 units of y3. Any help will be greatly appreciated. ThanksOlufemi
[[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.