cr xi - calculate variance

[campia]

Dear,

I need to calculate the variance between totals of a same period (i mean months: january, february,march...) but diferent years (2006,2007,2008).

How can i do that in cr xi. I tried to use the function "variance" but i do not know really how to use it. can somebody help me please?

thanks

André

 

[Madawc]

You can collect running totals that are specific to a particular month and year. At the end, do a comparison. Note that if a running total finds nothing it will be null, and an IsNull test should happen first if such an outcome is possible with your data.

The use of Crystal's automated totals is outlined at FAQ767-6524.

Madawc Williams (East Anglia, UK). Using Windows XP & Crystal 10