Re SPSS If you use syntax, you can calculate the sum this way:
compute varname = sum (var1,var2,var3,var4,...). This will ignore missing values and only perform the function using cells that have values. For means, the same idea applies: compute varname = mean (var1,var2,var3,var4..). SPSS will ignore the missing values and calculate the mean of the items that have values. Melady Preece --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED]
