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tutorial_-_time_events_-_monthly_max [2020/10/12 19:50]
erik 		tutorial_-_time_events_-_monthly_max [2023/03/10 13:48]
dmytroh
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   * A [[min max|Min/Max]] block which records the soil concentration.   * A [[min max|Min/Max]] block which records the soil concentration.
  
-==== Create time point ==== +**Create time point** 
-   +  - Create a [[time point]] block  
-  - Create a time point block  +  - Edit the block.  
-  - In the values screen, click the **Settings** button. Change the **Mode** to **Day of month**. +  - In the **Properties** screen  
-  - Enter the value 1 as the **Timepoint** in the table+    - change the name to "Month_time_point".  
 +  - In the **Values** screen  
 +    - Ensure that the **Dimension** is **Scalar** 
 +    - Click the **Settings** button.  
 +    - Change the **Mode** to **Day of month**. 
 +    - Enter the value 1 as the **Timepoint** in the table, which indicates the 1st of each month.
   - Close the window   - Close the window
        
 +**Create event**
 +  - Create a [[time event]] block
 +  - Edit the block.
 +  - In the **Properties** screen 
 +    - change the name to "Month_event".
 +  - In the **Values** screen 
 +    - Ensure that the **Dimension** is **Scalar**
 +    - select **Month_time_point** and click the **>** button.
 +  - Close the window
  
-  +**Create min/max** 
- +  - Create a [[min/max]] block 
- +  - Edit the block 
-This tutorial gives some examples of how to model events that occur at specific time points in a simulation.  +  - In the **Properties** screen, change the name to **Monthly_max** 
- +  - In the **Values** screen  
-==== Base model ==== +    - Enter the name _Soil_ in the **Target expression** column 
- +    - Select _Month_event_ in the **Reset** column 
-All examples are based on the following base model, which calculates a dummy value we can use for our event experiments. You can download the model from {{ :base_event_model.eco |here}} +  - Close the window
- +
-1. Edit [[simulation settings]]. Set +
- +
-  * **Time unit**: Days +
-  * **Time mode**: Time +
-  * **Start time**: 0.0 +
-  * **End time**: 100.0 +
-  * **Start date**:2000-01-01 +
- +
-  * **Output options**: Produce additional output +
-  * **Time points**: from start to end with a 1.0 increment +
- +
-2. Create a material named //Poison// with the unit //mg//. +
- +
-3. Create two compartments //Sky// and //Soil//. Set the initial condition for //Sky// to be **500** (mg) of **Poison**. +
- +
-4. Add a transfer from //Sky// to //Soil// and set its equation to //"30+sin(time/5)*20+cos(time/3+2)*10"//+
  
-5. Add a transfer from //Soil// to //Sky// and set its equation to //"30+sin(time/3+2)*10+cos(time/7+3)*20"//+**Run a simulation** 
 +  - Run a simulation, then plot **Soil** together with **Monthly max**.  
 +  - The plot should look like this:
  
-6. When run, the model will output a Sky and Soil concentration like this:+{{ :time_event_tutorial_monthly_max_plot.png?400 |}}
  
-{{ :time_event_tutorial_base_model_plot.png?400 |}}+You can download the solution {{ :monthly_max_model.eco |here}} 
  
-Continue with [[tutorial - time events - monthly max|Next]]+[[tutorial - time events|Previous]]  
 +[[tutorial - time events - monthly max with memory|Next]] 
  
 ===== See also ===== ===== See also =====
tutorial_-_time_events_-_monthly_max.txt · Last modified: 2023/03/15 09:36 by dmytroh

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