Hi Michael, Michael Brand <michael.ch.br...@gmail.com> writes:
> Hi Andreas > > On Mon, Jul 15, 2013 at 8:47 AM, Andreas Leha > <andreas.l...@med.uni-goettingen.de> wrote: >> I have two questions concerning tables in orgmode: > > I try to answer your first question: > >> 1. What is the best way to handle missing values? >> I have the problem, that missing values ("") are treated as "0" when they >> appear in a formula. >> Entering ("nil") instead helps a bit, but does not propagate, >> i.e. nil + 1 results in 0. >> Can I do better? > > Is this what you are looking for?: > > | Tomato | | | > | Pear | 3.00 | 6.00 | > #+TBLFM: $3 = if("$2" == "nan", string(""), 2 * $2 +.0); E f-2 > > For "E" see > http://orgmode.org/org.html#Formula-syntax-for-Calc > and for "+.0; f-2" see > http://orgmode.org/worg/org-faq.html#table-float-fraction > > Michael thanks a lot! All three comments (the if() statement, the "E" and the "f-2") of yours are extremely helpful. Question one solved. Cheers, Andreas