Dear Dimitri, This works find for me. It's not possible to know what you did wrong without more information, but one guess (probably wrong) is that you didn't enter a blank line to exit from specify.model(), which simply uses scan() to read the model:
> library(sem) > model1 <- specify.model() 1: NECESSITY -> n1, NA, 1 2: NECESSITY -> n2, lam_nec_2, NA 3: NECESSITY -> n3, lam_nec_3, NA 4: NECESSITY -> n4, lam_nec_4, NA 5: FRUGALITY -> f1, NA, 1 6: FRUGALITY -> f2, lam_frug_2, NA 7: FRUGALITY -> f3, lam_frug_3, NA 8: TIME -> t1, NA, 1 9: n1 <-> n1, theta_n1, NA 10: n2 <-> n2, theta_n2, NA 11: n3 <-> n3, theta_n3, NA 12: n4 <-> n4, theta_n4, NA 13: f1 <-> f1, theta_f1, NA 14: f2 <-> f2, theta_f2, NA 15: f3 <-> f3, theta_f3, NA 16: t1 <-> t1, NA, 0.414 17: NECESSITY <-> NECESSITY, phi_NN, NA 18: FRUGALITY <-> FRUGALITY, phi_FF, NA 19: TIME <-> TIME, phi_TT, NA 20: NECESSITY <-> TIME, phi_NT, NA 21: NECESSITY <-> FRUGALITY, phi_NF, NA 22: FRUGALITY <-> TIME, phi_FT, NA 23: Read 22 records > Regards, John On Wed, 11 Apr 2007 11:41:25 -0700 (PDT) John Smith <[EMAIL PROTECTED]> wrote: > A strange problem with sem: > > I downloaded the sem library and then, I specified my simple > measurement model (below). I highlighted it and ran it. It ran, but > it did NOT tell me "22 lines read". And nothing works after that - it > looks like it runs, but it does not produce anything... > Did I make a mistake somewhere in the model? (notice, TIME has only 1 > indicator - t1, and I fixed t1's error variance at 0.414.) > Thank you! > > model1 <- specify.model() > NECESSITY -> n1, NA, 1 > NECESSITY -> n2, lam_nec_2, NA > NECESSITY -> n3, lam_nec_3, NA > NECESSITY -> n4, lam_nec_4, NA > FRUGALITY -> f1, NA, 1 > FRUGALITY -> f2, lam_frug_2, NA > FRUGALITY -> f3, lam_frug_3, NA > TIME -> t1, NA, 1 > n1 <-> n1, theta_n1, NA > n2 <-> n2, theta_n2, NA > n3 <-> n3, theta_n3, NA > n4 <-> n4, theta_n4, NA > f1 <-> f1, theta_f1, NA > f2 <-> f2, theta_f2, NA > f3 <-> f3, theta_f3, NA > t1 <-> t1, NA, 0.414 > NECESSITY <-> NECESSITY, phi_NN, NA > FRUGALITY <-> FRUGALITY, phi_FF, NA > TIME <-> TIME, phi_TT, NA > NECESSITY <-> TIME, phi_NT, NA > NECESSITY <-> FRUGALITY, phi_NF, NA > FRUGALITY <-> TIME, phi_FT, NA > > > > ____________________________________________________________________________________ > Finding fabulous fares is fun. > > ______________________________________________ > 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 > and provide commented, minimal, self-contained, reproducible code. -------------------------------- John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.
