[EpiData-list] Manager /Calculate

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Thu Mar 6 02:11:49 CST 2014

In Manager, I do not understand the calculation of variables.
I have a file with "birth date" and "date delivery" and "age" for the 
and "weight" "size" and "BMI".
When I click on the variable "Age" / edit / calculate, I can not find 
the variable "Age" for calculate the difference between two dates, but I 
see "BMI".
On the other hand, on the variable "BMI" / edit / calculate, I do not 
find "BMI" but "Age" .....
Thank you for helping me.

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