unfortunately I am having trouble with CEM in SPSS 25.
In this case CEM is run for two groups (with k-to-k-matching) and by three variables with two of them being nominal (intentional exact matching) and one variable (age) is coarsened with user-specific cutpoints.
When I run CEM the output shows me the "Matching Summary", "Multivariate Imbalance" (I assume before matching) and
"There were 50 or more warnings (use warnings() to see the first 50)"
Up to now I haven't been able to access these warnings since following the instructions produces an Error 1-message, that
"warnings()" ("WARNINGS()", "/WARNINGS()", "WARNINGS" and other variations) are not recognised as SPSS Statistics commands. I am not very knowledgeable about SPSS Syntax yet, so the issue might be due to my lack of knowledge of it.
I would also like to compare the multivariate imbalance before and after matching, but trying to widen my knowledge of SPSS Syntax commands regarding CEM has not been fruitful so far. A view links and pictures on the official page which might be helpful seem to be down as well (
https://dl.dropbox.com/u/5379343/lalonde.sav - the example dataset, "The CEM-SPSS dialog box"-image for example).
I would be delighted to discover a manual or article about CEM in SPSS (regarding commands and understanding the output)
but have only been able to find some about CEM in R.
Any help would be greatly appreciated.
Thank you very much for the CEM plugin, your time and any help.
Kind regards
Michael Mejda