Version 0.10 (final) released
Gaëtan de Menten
I am pleased to announce that version 0.10 of LIAM2 is now available.
Highlights of this release are the implementation of while loops and calling
user-defined functions, potentially with arguments. Please also see the
complete release notes below for a potential migration issue concerning code
defined outside of functions/procedures and for a description of other changes.
This new release can be downloaded on our website:
http://liam2.plan.be/pages/download.html
As always, *any* feedback is very welcome, preferably on the liam2-users
mailing list: liam2...@googlegroups.com (you need to register to be
able to post).
New features
------------
* implemented support for calling user-defined functions
(previously called procedures) from within user code,
optionally passing arguments to them and retrieving their return value.
As a consequence of this, every mention of "procedures" in the documentation
has been replaced by "functions", including the name of the "procedures"
logging level which is now deprecated. Closes issue 152.
* implemented while loops (closes issue 151).
* added support for not storing some fields in the output file
(closes issue 58).
* added support for using the "inf" (infinite) constant.
Miscellaneous improvements
--------------------------
* improved our error handling code to display the (part of the) line where the
error occurred in more cases and to not strip the traceback (error.log) of
some important information in the cases where the line was already displayed.
* configured the bundle editor (Notepad++) to display some warning and
error lines in red in the console log. Additionally, when the error message
contains a filename and/or a line number (this is currently too rare
unfortunately), it is now click-able (to jump directly at the file/line).
* defining a process outside of a function has been deprecated because it is
ambiguous. For example, this code will now trigger a warning and will be
an error in a future version:
entities:
person:
fields:
agegroup: int
processes:
agegroup: 10 * trunc(age / 10)
simulation:
processes:
- person: [agegroup]
It should be replaced by (or possibly moved into another existing function):
entities:
person:
fields:
agegroup: int
processes:
compute_agegroup:
- agegroup: 10 * trunc(age / 10)
simulation:
processes:
- person: [compute_agegroup]
If this construct was used to have a temporary field (ie the field was not
declared in the fields section) accessible from several functions, like
entities:
person:
processes:
tempfield: 0
func1:
tempfield: count()
func2:
otherfield: tempfield + 1
One should now declare that field with `output: False` instead.
entities:
person:
fields:
tempfield: {type: int, initialdata: False, output: False}
processes:
func1:
tempfield: count()
func2:
otherfield: tempfield + 1
This closes issue 124.
* made bcolz optional (which is only useful for interpolating the dataset
during import). Thanks to Mahdi Ben Jelloul (pull request 161).
* allow simulations with no processes section (but an init section).
* reworked a few sections of the documentation.
* trying to set a value to an unknown variable in new/clone produces a warning
instead of being silently ignored (or even crashing with --debug)
Fixes
-----
* fixed end-of-simulation stats when simulating 0 periods (closes issue 158).
* allow overriding (detected) field types of period and id fields in import
(closes issue 154).
* fixed autodump (broken in 0.9). Note that it is currently incompatible with
while loops and recursive (user-defined) functions.
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