Re: Using est+ with effort estimate range

[Axel Kielhorn]

> Am 30.05.2020 um 14:40 schrieb Axel Kielhorn <org-mode@axelkielhorn.de>:
> 
> Hello,
> 
> according to the manual, there is a special column type for column view
> 
> ‘est+’        Add low-high estimates.
> 
> This is explained later:
> 
> The ‘est+’ summary type requires further explanation. It is used for 
> combining estimates, expressed as low-high ranges. For example, instead of 
> estimating a particular task will take 5 days, you might estimate it as 5–6 
> days if you’re fairly confident you know how much work is required, or 1–10 
> days if you do not really know what needs to be done. Both ranges average at 
> 5.5 days, but the first represents a more predictable delivery.

There was a bug report in 2014:

Date: Tue, 16 Dec 2014 11:45:21 -0500
Message-ID: <CAG2CFAaaFUyM5MJRfYxJ=kjnqmS=ub54Rx3NVtsgDMcyHQ-zsQ@mail.gmail.com>
To: emacs-orgmode@gnu.org
Subject: [O] Bug: est+ not working,
 or perhaps under-documented [8.2.10 (release_8.2.10 @
 c:/Users/yhluc00/emacs/share/emacs/24.4/lisp/org/)]

With a reply and a patch by Nicolas:

From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date: Tue, 16 Dec 2014 23:57:48 +0100
Subject: Re: [O] Bug: est+ not working,
        or perhaps under-documented [8.2.10 (release_8.2.10 @
        c:/Users/yhluc00/emacs/share/emacs/24.4/lisp/org/)]
X-BeenThere: emacs-orgmode@gnu.org
X-Mailman-Version: 2.1.14

Proper syntax is simply

  :Effort: 4-12

But this gives:
Invalid duration format: "4-12“

Here is the patch:

Fix low-high estimates  c1558d34d       Nicolas Goaziou 
<mail@nicolasgoaziou.fr>        16.12.2014, 23:53

Greetings Axel