How can I limit the analysis from going into negative values?
I want to analyze a 4-factor DOE. However, some responses are negative. This makes my model completely meaningless. These are results that cannot be negative. I used two fields to limit the responses. I added a visual representation of these fields, but they did not work. Can I perform an analysis that does not accept negative responses? Can I set such a restriction? Could you please share any sug...