ZhenLi, OK, just to make sure that I understand ... It sounds like you need 550 means in total. The mean of the first variable, based on 100 observations (1st observation from data set 1, plus first observation from data set 2, ... first observation from data set 100). The mean of the first variable, based on 100 observations (2nd observation from data set 1, plus second observation from data set 2, ... second observation from data set 100). The last mean would be: The mean of the 11th variable, based on 100 observations (50th observation from data set 1, plus 50th observation from data set 2, ... 50th observation from data set 100). Does this sound right?
... View more