CANDY-22

CANDY: Manual und download

Here are download links for an experimental (private) use of the software. The use is only permitted with the consent of the author and is at your own risk. The author refuses all liability for any malfunctions that may occur and their possible consequences.

Starting with this version, CANDY's data storage requires the installation of a PostgreSQL server - which can also run on the local system without a network connection.

... more information about Postgres can be found under this link

and here is some help with Postgres installation

This Manual describes how to work with the current user interface

(last update:19.05.2023 17:17:42, filesize: 4052642 Byte )

There are two apps within the CANDY software pack: cdy_prepare that arranges the basis for the cdy22_gui - the graphic user interface for the CANDY model. Both apps are updated from time to time to further improve them.

the latest version for download are on top, go to the bottom of this page to find the previous version

Several improvements for the CANDY model are available with versions 22.6 which will soon be available for practical tests. Similar as in the C-N-P model, Crop residues can now be split into above- and below-ground parts. This required a change in data structure: the table cdypflan is replaced by cdycrops.
If the new model opens a database with the old structure there will be an option to adapt the database. This may require some additional input of dry matter content for the main product.

Development steps

date	comment
07.10.2022	first test version uploaded
09.10.2022	improved test version
16.10.2022	improved sqlite interface
17.10.2022	bugfix multiplot sim
27.10.2022	sql script from GIT enabled
08.12.2022	bugfix water balance error & stc start enabled
21.01.2023	several bugfixes and functional improvements
13.02.2023	version 22.7 with permant grassland
14.03.2023	bugfix and improved git interface
27.03.2023	periodic simulations re-introduced and better performance in auto-mode
13.04.2023	22.7.5: status initialisation enabled; bugfix automat
19.05.2023	22.7.6: settings for indiviual databases; also included in sqlite-im&export
01.06.2023	22.7.7: bugfix for individual master password on postgres

most recent version:

CANDY software pack for MAC-OS ( 22.7.6) as ZIP download

(last update:19.05.2023 17:30:34, filesize: 33019944 Byte )

CANDY software pack for W64 ( 22.7.7.0) as ZIP download

(last update:01.06.2023 15:02:52, filesize: 28885581 Byte )

former download links:

CANDY software pack for MAC-OS ( 22.6.101) as ZIP download

(last update:21.01.2023 10:25:07, filesize: 32625511 Byte )

CANDY software pack for W64 ( 22.6.2.34) as ZIP download

(last update:21.01.2023 10:24:27, filesize: 28877004 Byte )

Here is version lower than 22.6

Modifications to cdy_prepare

date	comment
20.04.2021	several improvements and bugfixes
27.04.2022	new search button for pg driver

Modifications to cdy22_gui

date	comment
20.04.2021	several improvements and bugfixes
27.04.2022	time recording included when run in batch mode (BG_RUN)
29.04.2022	BG_RUN window closes on finishing
07.09.2022	severe error fixed in water sub model; update is strongly recommended

download links:

CANDY software pack für MAC-OS is available on request; but usage of beta version (22.6) is recommended

CANDY software pack for Windows (64bit) as ZIP download

(last update:07.09.2022 19:48:12, filesize: 29795490 Byte )

CANDY software pack for Windows (32bit) as ZIP download

(last update:14.09.2022 09:30:08, filesize: 27086379 Byte )

After downloading, extract cdy_prepare and cdy22_GUI from the zip file into a directory with write permissions. Before using the model itself, you must first start cdy_prepare, which sets up a database on the Postgres server, creates an user account and writes an ini-file.

CANDY 22