Guys, i post a script for generate graphs with:

Day: 08/27/2007
USER  -  8h 9h 10h 11h 12h 13h ....
User_1 -  3   12  13   7     5    14
User_2 -  8   10  21   12   9    10

this number is total of mails sent with system.
This one form to know the yield by user/hour

The post (in spanish and portugues): http://gazambuja.ideas3.com/2007/08/24/graficas-de-rendimiento-en-otrs/

Any help to do better, please mail me.

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Saludos,
Gustavo Azambuja
Linux User: 275813
http://gazambuja.ideas3.com