search for: vd2

Dear all, I'm writing code to do automatically several calculations and gather the results in a matrix. I have the following vectors and I just want to make a matrix with them: VD1 VD2 VD3 ... VD12 *In this case, this series of vectors stops there, in 12, but it could be a higher number or smaller. (for example: VD1, VD2 and VD3; only) (or for example: VD1, VD2, ... till VD78) All vectors have the same length, 9. And vectors should be entered by row. Besides, I would like to ad...

...thin a package source directory which has some vignettes in inst/doc. When the check finally comes to "checking re-building of vignette PDFs ..." i get the following error *** caught segfault *** address 0x7fff6073c998, cause 'memory not mapped' Traceback: 1: file.copy(pkgdir, vd2, recursive = TRUE) 2: run_vignettes(desc) 3: check_pkg(pkgdir, pkgname, pkgoutdir, startdir, libdir, desc, is_base_pkg, is_rec_pkg, thispkg_subdirs, extra_arch) 4: tools:::.check_packages() aborting ... Segmentation fault (core dumped) as one can see, the error stems from the call file.copy(pkg...

...ome vignettes in > inst/doc. When the check finally comes to > "checking re-building of vignette PDFs ..." > i get the following error > > ?*** caught segfault *** > address 0x7fff6073c998, cause 'memory not mapped' > > Traceback: > ?1: file.copy(pkgdir, vd2, recursive = TRUE) > ?2: run_vignettes(desc) > ?3: check_pkg(pkgdir, pkgname, pkgoutdir, startdir, libdir, desc, > is_base_pkg, is_rec_pkg, thispkg_subdirs, extra_arch) > ?4: tools:::.check_packages() > aborting ... > Segmentation fault (core dumped) > > as one can see, the...

I have been working through the book "Applied longitudinal data analysis: modeling change and event occurrence" by Judith D. Singer and John B. Willett. I have been working examples using SAS and also using it as an opportunity for learning to use R for statistical analysis. I ran into some difficulties in chapter 8 which deals with using structural equation modeling. I have tried to