Hello. I have SPSS 25 on Mac and added R 3.3 extension, so that I could add the zero inflated extension. Both seem to be successfully added into my SPSS menu. However, when I run the zero inflated negative binomial analyses, nothing happens. There's a brief moment when I see "zero inflated" flashed at the bottom where "IBM Statistics Processor is ready" is displayed, but then no output is created.
Please advice.