Suzanne Witt wrote: > I keep getting this error when I try to use the sem package. I and > another person who has successfully used the sem package for similar > analysis (fMRI effective connectivity) cannot figure out what is > wrong with my code. I would appreciate any suggestions.
It is almost impossible to help if you do not specify a toy example that shows how you produced that error message. Please read the psoting guide which tells you how to specify such examples most appropriately in order to get a good answer. Uwe Ligges > The error message: > > Error in data.frame(object$coeff, se, z, 2 * (1 - pnorm(abs(z))), > par.code) : > arguments imply differing number of rows: 6, 0 > In addition: Warning message: > Could not compute QR decomposition of Hessian. > Optimization probably did not converge. > in: sem.default(ram = ram, S = S, N = N, param.names = pars, > var.names = vars, > > > Thank you, > > Suzanne > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html