05-01-2009 11:39 PM
06-24-2011 06:36 PM
I think we need more info...if the data is online from your text, pointing to the link would be helpful and someone can duplicate your results.
I noticed 2 variables named radiated...how many levels does each have.
Are all Strata being tested at the same time in your text as well?
Can always check the technotes for an errors in proc lifetest and/or your text for erratas...