Search found 51 matches

by Priscila
Fri May 17, 2019 12:25 am
Forum: Vensim
Topic: Backup model
Replies: 1
Views: 1362

Backup model

Hello,

The hd of the computer that was working with my model burned and had several unsaved changes, I wonder if there is any possibility of accessing a model developed in another computer?
Is there any backup that is saved through my license?
by Priscila
Sat Jan 12, 2019 2:56 pm
Forum: Vensim
Topic: Export
Replies: 1
Views: 1429

Export

Hello,

I'm trying to export data from vensim to excel, however, I have a series of 420491 data and I'm only managing to export up to 65534. Do you have any export restrictions on vensim? Is there any solution for me to be able to export all the data?
by Priscila
Mon Dec 03, 2018 11:15 am
Forum: Vensim
Topic: Graphics Axis
Replies: 4
Views: 2643

Re: Graphics Axis

Normal, but I would like to change the axis
by Priscila
Wed Nov 28, 2018 5:20 pm
Forum: Vensim
Topic: Graphics Axis
Replies: 4
Views: 2643

Graphics Axis

Good afternoon,

Could you please tell me how do I change the axis of the graphs of the results presentation? I'm looking for Vensim's help, but I could not answer the question.
by Priscila
Mon Nov 05, 2018 11:23 am
Forum: Vensim
Topic: Search excel
Replies: 3
Views: 2404

Re: Search excel

Good Morning,

The numbers in the table are constant; they do not vary throughout the simulation. How can I use a lookup table, which function. Attached to the worksheet.
by Priscila
Fri Nov 02, 2018 11:25 pm
Forum: Vensim
Topic: Search excel
Replies: 3
Views: 2404

Search excel

Good night, I would like to know if there is any function that can do research in excel. For example, I have the wind speed entering a variable that is the power curve (which relates wind speed to output power) and needs to get output power. The power curve is in excel on a table, according to the p...
by Priscila
Wed Oct 24, 2018 6:52 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

Sorry for the nuisance again, but there is some function that takes values ​​over time for a given variable and provides the mean, for example: variable X = 2,4,3,5,2,2 desired variable = 0,3,0,4,0,2 In this case the average of the variable X is calculated every two time intervals and presented. Tha...
by Priscila
Wed Oct 24, 2018 3:50 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

Yes, but from this variable I need to find the maximum value that another variable reaches during the month. This new variable must compare the value at time = 1 with the value at time = 0 and so on, always providing the maximum value.
by Priscila
Wed Oct 24, 2018 3:10 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

I need to find the maximum value of a variable every month, however using SAMPLE IF TRUE this variable is accumulated and this is not what I need. What function could I use, having the variable that tells me when it starts a new month.
by Priscila
Tue Oct 23, 2018 12:50 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

Thank you so much, I was able to solve some of my problem.
One more question, it is possible to reset a SAMPLE IF TRUE variable
by Priscila
Mon Oct 22, 2018 4:42 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

Hello,

You have an answer, which function can I use.
by Priscila
Tue Oct 16, 2018 1:09 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

The template is attached in the Fatura tab. To give continuity in the precise modeling find the maximum value of demand each month, represented by the variable Máxima demanda faturada Ponta, with one month being 2785 data each.
by Priscila
Tue Oct 16, 2018 12:39 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

Working with energy demand data, this data is every 15 minutes, so every 2784 data I have a month, how can I create the variable that informs when one month ends and starts the other to be able to use the equation above and reset whenever ends a month.
by Priscila
Mon Oct 15, 2018 1:22 pm
Forum: System Dynamics Discussion
Topic: Transform annual data into monthly cumulative data
Replies: 29
Views: 62296

Re: Transform annual data into monthly cumulative data

some level = integ (inflow - outflow - reset level, initial stock) reset level = if then else ( time = 10 , some level / time step , 0 ) This will reset the level at time = 10. Good Morning, As above the variable is reset at time 10, how can I reset a variable with a fixed time, for example wheneve...
by Priscila
Tue Oct 09, 2018 4:49 pm
Forum: Vensim
Topic: Function examples
Replies: 4
Views: 2523

Re: Function examples

Found it.
Thanks
by Priscila
Tue Oct 09, 2018 4:07 pm
Forum: Vensim
Topic: Function examples
Replies: 4
Views: 2523

Re: Function examples

Windows 7
by Priscila
Tue Oct 09, 2018 3:47 pm
Forum: Vensim
Topic: Function examples
Replies: 4
Views: 2523

Function examples

Good afternoon,

I am not able to open the exams that the vensim has, it is necessary to install something to have access.
by Priscila
Thu Aug 23, 2018 1:37 pm
Forum: Vensim
Topic: Simultaneous equations
Replies: 1
Views: 1883

Simultaneous equations

Hello,

I have a problem with simultaneous equations involved, so I made one of the variables level, but I do not need to integrate (add) the values over time. Is there any way to use a level variable without adding values?

Thanks
by Priscila
Wed Jun 20, 2018 4:15 pm
Forum: Vensim
Topic: sum of all the values
Replies: 1
Views: 1612

sum of all the values

Good afternoon,

There is a way to make a final sum of all the values over time of a given variable. For example
Variable Xi = 1,3,4,6,0,0,4,3
Variable Yi = 1,4,8,14,14,14,18,21

I want to get the variable Y, how can I proceed?

Thanks
by Priscila
Thu Apr 12, 2018 12:45 pm
Forum: Vensim
Topic: Importing Data to Use as a Search Variable
Replies: 5
Views: 3470

Re: Importing Data to Use as a Search Variable

Thank you Tom, this video was very useful.
by Priscila
Mon Apr 09, 2018 4:10 pm
Forum: Vensim
Topic: Importing Data to Use as a Search Variable
Replies: 5
Views: 3470

Re: Importing Data to Use as a Search Variable

For example,
A variable X is input for an auxiliary variable X x Y with subtype with lookup, where I will have a graph that will provide me the output Y according to input X.
I need a function for the X and Y data to be imported into Vensim.
by Priscila
Mon Apr 09, 2018 12:25 pm
Forum: Vensim
Topic: Importing Data to Use as a Search Variable
Replies: 5
Views: 3470

Importing Data to Use as a Search Variable

Hello,

I would like to know if there is a way to import a excel chart as a search data variable. Which function should I use.
by Priscila
Wed Mar 14, 2018 4:03 pm
Forum: Vensim
Topic: Creation of hidden variable blocks
Replies: 4
Views: 2800

Re: Creation of hidden variable blocks

Below is a model for example, where I would like the number of panels and the load to be inside the solar energy variable.
When it was necessary to change these variables I would go into the solar energy block and change.
I need to do this so that the model is not visually polluted as it increases.
by Priscila
Wed Mar 14, 2018 1:40 pm
Forum: Vensim
Topic: Creation of hidden variable blocks
Replies: 4
Views: 2800

Creation of hidden variable blocks

Good Morning,
I would like to know if it is possible to create blocks within the vensim, for example, one block of variables provides a result that is used in another block with other variables. The idea would be to hide the variables in each block.