I am in the throes of setting up an Org mode spreadsheet for an invoicing/status/planning tool and came across this fabulous thread: *[O] org table calc and lisp for hh:mm timetable<http://lists.gnu.org/archive/html/emacs-orgmode/2011-03/msg00972.html> *at http://lists.gnu.org/archive/html/emacs-orgmode/2011-03/msg00972.htmlwhich provided me much of what I need. So thanks to all involved for that excellent piece of work.
The one problem I am having trouble grasping is in how to use Emacs Lisp to generate a range of values automagically. I have no trouble with a single cell using Lisp and passing in a rectangular region to process or in setting up a region using the Org table/spreadsheet/calc support described in the various Google accessible documentation. What I am trying to do at a high level is setup a table with rows of actions spanning a start and stop time. Each action row has a bill-to category column. In the table, as part of a Lisp based formula, I want to process these action rows and build a list of "bill-to : total time" summary values and then place these summaries in a range in the table, so a fragment of the table might look like: ... | Client1 | Client2 | Commute | ... ... | 12.50 | 22.00 | 10.5 | ... where the numbers (hours) have been summed by filtering the task rows by clients. Hope that's clear. So there are essentially two issues for me: the first is understanding how to associate a range destination for a Lisp based formula result, which I think can be done, I just do not understand how to do it yet, and second, probably an enhancement request, is to figure out how to pass a list of cell addresses to a List form (along with other data) and have the form compute and store values to those cells. The latter would a sort of holy grail, at least for me. Thanks, -pmr
