Re: [R] sem R: singular and Could not compute QR decomposition of Hessian

Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of sanchez ana Sent: June-04-10 3:31 PM To: r-help@r-project.org Subject: [R] sem R: singular and Could not compute QR decomposition of Hessian Can somebody help me with the following issue (SEM in R

[R] sem R: singular and Could not compute QR decomposition of Hessian

Can somebody help me with the following issue (SEM in R), please:   When I run the model (includes second order models) in R, it gives me the following:   1)   In sem.default(ram = ram, S = S, N = N, param.names = pars, var.names = vars,  :   Could not compute QR decomposition of Hessian.