stat

| references: group

1. action
2. ajax
3. API
4. classes
5. common attributes
6. conditions
7. context
8. dates
9. display
   1. add_btn
   2. add_document
   3. admin_links
   4. comments_count
   5. content_lang
   6. design
   7. filter
   8. flash_messages
   9. h
   10. img
   11. javascripts
   12. mail_hide
   13. min / max
   14. search_box
   15. set
   16. show
   17. stat
   18. stylesheets
   19. summary
   20. text
   21. title
   22. uses_datebox
   23. zazen
   24. zena
10. forms
11. i18n
12. meta
13. SQLiss
14. urls

display statistical information for a list/group	find (min, max, sum, count) default ‘count’ date same as ‘find’ for dates format (sprintf format, date format) of field (default ‘value’) from same as ‘of’
see group
<r:data do='stat' find='sum' format='%.3f'/> <r:pages do='stat' find='sum' of='d_hours'/> <r:pages do='stat' date='min' of='log_at' format='%Y'/>