Hello,

Thank you Gerrit for the clarification on the refresh function in
X-Build.

In trying to generate the cultivar parameters using genetic algorithms,
I am stuck on how to run DSSAT (actually DSCSM040) with the genetic
algorithm (code in C).  While I can open DSCSM040.exe with both System()
and ShellExecute(), I can not pass the needed keystrokes (ENTER,
experiment number, cultivar, etc.) to the executable; it sits waiting
for the keyboard input.  I have also tried using System or ShellExecute
to open a batch file to pass the inputs, but still cannot pass the
keystrokes to DSCSM040.

Are there any command line arguments that could override the input from
the keyboard?  If not, can anyone offer any advice on how to run the
model within the optimization code?

Thanks

Heidi Webber

-----Original Message-----
From: DSSAT - Crop Models and Applications
[mailto:[log in to unmask]] On Behalf Of Gerrit Hoogenboom
Sent: Friday, July 07, 2006 6:40 PM
To: [log in to unmask]
Subject: Re: Change in cultivar file

Heidi,

There is no need to use the refresh button in XBuild when you change
the values of an existing cultivar. You only need to use refresh in
XBuild when you add a new cultivar, a new soil profile or new weather
data to the DSSAT database. Refresh only applies to XBuild's internal
database and it does not affect the operation of the other tools and
programs within DSSAT.

Please keep us informed about your progress with the GA.

Regards,

Gerrit


At 06:24 PM 07/07/2006, you wrote:
>Hello:
>
>I am working with an unknown cultivar of common bean in Uzbekistan and
>would like to use genetic algorithms to select appropriate cultivar
>parameters following much the same approach as in Pabico, Hoogenboom
and
>McClendon (1999).  I am currently working on the code to write the
>output of the genetic algorithm to the cultivar file.  My question is
>whether or not I will need to use the "refresh" function in X-build
with
>each pass of new parameter values to DSSAT?  Or is this only needed
when
>a new cultivar is added (i.e. not changes to an existing cultivar)?
>
>Thanks for any clarifications.
>
>
>
>Heidi Webber