Search found 5 matches

by jmasis
Mon Jun 05, 2006 3:03 pm
Forum: Vensim
Topic: Help
Replies: 8
Views: 4952

Bob,

It worked just as I wanted!

Thanks a lot for your prompt replies!

Julio


Originally posted by bob@vensim.com
PLE Plus supports hold backwards - just type it in after the variable name - that is

Precipitation :HOLD BACKWARD:

check the Reference manual for details.
by jmasis
Mon Jun 05, 2006 2:00 am
Forum: Vensim
Topic: Help
Replies: 8
Views: 4952

Bob,

I am glad you understood me, unfortunately my Vensim PLE PLUS version does not include :HOLD BACK: or LOOK FORWARD or GET DATA BETWEEN TIMES.

Do you know other work around?

Thanks

Julio
by jmasis
Sun Jun 04, 2006 2:37 pm
Forum: Vensim
Topic: Help
Replies: 8
Views: 4952

Thanks Bob, I definitively have to do those corrections. I have attached the model again and added a custom graph of runoff in a short interval to illustrate the triangular distribution of points around the input data instead of flat distributing when time step is less than one. When DT is less than...
by jmasis
Sun Jun 04, 2006 2:52 am
Forum: Vensim
Topic: Help
Replies: 8
Views: 4952

Hi Bob, Everytime I set the Time Sep to lower than 1, I obtain quite different behaviours, Vensim will distribute daily rainfal in an uneven way to each time fraction in a kind of triangular distribution rather than uniformly. You will understand me easily if you compare the time series of computed ...
by jmasis
Fri Jun 02, 2006 5:53 pm
Forum: Vensim
Topic: Help
Replies: 8
Views: 4952

Help

Hi everyone, I am new with Vensim. I am developing a Water balance Model which reads Daily rainfall data from an XL wortksheet. The model works fine when the time step is one day, but that still is too coarse for some processes and I need to refine the output by setting Time Step to 0.125 of a day. ...