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Please help me to solve this problem

thanks for your reply
my goal that max A in total A time series select, in this time series A is 13.97

Hello
thanks for your reply
this function did not work properly
I want do this (attached Pic)
It is worth mentioning that I use free version (Vensim PLE)
I 'll thank you to guide me .

Hi every one
I have a question about vensim:
I have use the condition function that if X in the time series=Max, then X+b, X
X is the number in the time step
How i can do this?
the attached pic my concept
thanks a lot

Hi every one
I have a question about vensim:
I have use the condition function that if X in the time series=Max, then X+b, X
X is the number in the time step
How i can do this?
the attached pic my concept
thanks a lot

I think you'll have to use my original solution instead. Admin's version is more physically motivated, but there's no way to get rid of the lag in reporting the integration (though of course you could simply ignore it). APWL previous = DELAY FIXED(APWL,TIME STEP,0) APWL = IF THEN ELSE( infiltration...

It's hard to diagnose "different" without having the Excel and Vensim models running on exactly the same infiltration data for comparison. The difference could be roundoff, or it could be a difference in inputs. Hi thanks for your reply I attached excel data of surface infiltration and th...

Have a look at the attached model, it does something like you need. forum water example.mdl The only issue is that things are delayed by a month, but that makes sense as in the table you uploaded, "surface infiltration" is almost certainly measured over the whole month, but APWL must be t...

this model created by Administrator

I mean this is APWL photo that attached

thanks a lot for your reply
I am very happy that this problem has been resolved, but the value of APWL from this model not equal with excel value. I edited value and attached this model and APWL value in excel. Please in this case, guide me

Hi I am using Vensim PLE V. 6.4 in my thesis. I had to use below equation in vensim model. APWL: is accumulated potential water loss. When surface infiltration>0, APWL =0, When surface infiltration<0, APWL(i)=APWL(i-1)+Surface Infiltration(i) i-1 is refer to APWL in one month ago. I attached the sam...

hi all,
i am master student in water resource management
i have a question in vensim model
how can put this equation in this model?

if A>0 , X(i)=0
else A<0, X(i)=X(i-1)+B
thanks.