Hi everybody.
When planning projects I estimate the amount of time for tasks by
filling the property EFFORT with an amount of time.
#+begin_src org
,*** Projekt
:PROPERTIES:
:COLUMNS: %30ITEM %8EFFORT{:}
:END:
,**** effort planned/estimated
:PROPERTIES:
:EFFORT: 10 h
:END:
#+end_src
After acceptance of this planned time the project will be executed and
I sum the amount of time I really needed.
#+begin_src org
,**** first effort done
:PROPERTIES:
:EFFORT: -2 h
:END:
,**** secon effort done
:PROPERTIES:
:EFFORT: -3 h
:END:
#+end_src
When M-x org-columns I'd like to see column view with the balanced sum
of the hours planned and the hours really worked, but I get an error
cond: Invalid duration format: "-2 h"
I know I'm using old versions but this problem is also on newer versions.
org-version: 9.2
GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.5)
of 2017-09-12 on hullmann, modified by Debian
I'm wondering why this doesn't work - many people are planning their
whole life with org mode (as I'm doing as well), is any help available?
