Dear group Could someone help with this syntax task: We have 10 variables where each represents a tourist stop that people have taken on trips throughout their travels (eg Stop 1 where they stayed the 1st night, stop 2 where they stayed the 2nd night and so on). For each of these variables there are 30 possible destinations (these same 30 are value labels for each of the stops). We would like to gain data relevant to the number of times people travelled from point A to Point B (regardless of whether it may have been from Stop 1 to 2 or Stop 9 to 10) as well as times (ie frequency of trips) travelled from Point B to Point A. Further this needs to be repeated for all possible combinations within the 30 destinations (= 465 combinations). Is there some syntax command that might abbreviate this task (perhaps LOOP or VECTOR?)

-- Dr Peter Newcombe School of Psychology University of Queensland Australia 4072 newc@psy.uq.edu.au