how we can describe spectrum graphs of SEM

Google SEM in R. You will get a set of packages. You can then Google the package name to get documentation. R is a free download and most packages are excellent. Best wishes, David Booth

Thanks dear sir.

Please my sem has a bright spot what is the problem

i use both mplus and lavaan. i cannot say which of the two is the best software. but i can tell u lisrel and amos are not the best.

SmartPLS or Adanco for PLS-SEM models and SPSS Amos or plsem package for Stata for CB-SEM models