Ventana software support forum

thanks for your reply, I have noticed that any variable i create to take the value of a division of two levels in vensim does that....it there any way can fix this....as in the previous case, "level of modularity" was a value to represent the value of the division of levels "errorneou...

Hi there,

Please can I know why I keep getting this error message "floating point overflow- saving to time 0.00000" after changing some variables .

Thanks

thanks

thanks a lot, it works. pls how do I insert the delay symbol in my model?

Hi there, am using the ranfon fixed function and it randomizes my values to 4 decimal places...is ther a way i can make vensim generate the numbers to 2 decmal places.thanks

GOD bless u

Could you pls help with d smooth function usage in the context of the model example?I have tried it as u explained but am still getting the errors...sorry for being a pain...appreciate.

tnx for d reply, however, the ignored rate is a function of the fake stock so I still get errors "simultaneous equations involving "rate" and "cow" is not used in the model

many thanks Tom, however, I tried it as u described in the attached model but still have a problem. The first boxed axillary variable still sees "rate" as an outflow,which I would have though shouldn't be so since "goat" is technically not a level anymore Because of this, the equ...

Hi, a bit of help needed pls. In this model example, the levels "incomings" "worked" and posted work ideally need not be levels but for some behavioral explanation I made them to be. Therefore, I need to analyze the behavior of these levels concurrently.is there anyway I can remo...

Hi there, the level "received docs" is suppose to receive a pulse input of 10 at time 1 and 0 at other times, thus, having a value of 8(10-2) at time 1 and then 6,4,2....I am confused why level "received docs" has a value of 2 at time 1 and value of 12 at time 2....I presume am m...

thanks!

tnx, but what variable name do I give the time step (round of simulation) in the lookup function...I still dont get how the lookup variable will accept each iterative time count as the input to produce the lookup output

hi there,

Please, is there a way I can create a lookup to accept the time step as the input?say, for example, A= 8 for time 1, A= 6 for time 2.....

many thanks

Hi
I am wondering how to combine multiple "IF THEN ELSE " statements in the same equation.i.e. how to I represent in a single equation 3 or 4 conditions of a statement with he same IF THEN ELSE equation?

cheers Tony

Hi, Still not clear, so in the attached example, the variable "lookup" is suppose to accept input Design quality an output"average manpower to maintain test suite". The relationship between these two has been described in the lookup.Where does the "Design quality" fit i...

hi guys, So, i have a variable "age"as an input into the lookup variable that accepts the age variables and produces other figures depending on the age value entered. As I have completed the lookup values in the equation box, there is no place to represent "age" as the input in t...

cheers guys, the lookup function does it well....

Hi, I am building a model with a variable, say X, with a function to take a value of various multipliers depending on the range of its input.e.g if X input 0.8-1, X output = 1,if X input is 0.6 - 0.79, X output = 0.8...so this is more or less like a "switch" statement.Can I do this in Vens...

thanks..it does

Hi everyone, I am new to system dynamics and |need to function in vensim for my model but not sure what I need to use.Basically, I am tryin to give a value of "1" to a variable atr every multiples of 10 iterations and it keeps a value of zero otherwise.i.e it has a vaulue of "1" ...