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time_series_screen [2014/05/26 12:59]
erik [Data]
time_series_screen [2015/03/09 15:03] (current)
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 ====Introduction==== ====Introduction====
  
-The layout of the [[options screen]], ​[[time series ​screen]] and the [[parameters screen]] is the sameand is described ​in [[user interface#​data input screens]]+[[Time series]] ​are used for temporal measurements ​and data such as wind speedsprecipitation,​ concentrations ​in water etc. The data you need to provide for your study depends on which [[sub-system|sub-systems]] you have selected for your model
- +
-Options are listed by name, and selecting an option in the list allow you to change it+
  
 ====Tool bar==== ====Tool bar====
  
-| {{ export24.png }}| Export to Excel | See [[exporting and importing data]] | +| {{ export24.png }}| Export to Excel | See [[importing ​and exporting ​data]] | 
-| {{ import24.png }}| Import from Excel | See [[exporting and importing data]] |+| {{ import24.png }}| Import from Excel | See [[importing ​and exporting ​data]] |
 | {{ help24.png }}| Help | Shows this page | | {{ help24.png }}| Help | Shows this page |
  
-====Data====+====Entering time series==== 
 + 
 +The time series are listed on the left hand side of the screen. When you select a time series in the list, the table on the right displays its data.  
 + 
 +Time series begin at 0 and use a time unit of days.  
 + 
 +Below the table is a graph showing you the data you have entered. The time axis starts at the simulation start time and ends at the simulation end time. You can hide the plot by clicking the {{editor16.png}}**Toggle** button. 
 + 
 +**Note** - The table shows data for one [[dependency]] at a time. For a time series dependent on contaminants,​ a drop-down list above the table will let you choose which contaminant to enter values for. Use the [[default]] item in the drop down list if you want to assign the same values for all contaminants.  
 + 
 +====Importing and exporting==== 
 + 
 +{{ ::​time_series_paste.png?​nolink|}} For long time series you might consider [[importing and exporting data|importing data from Excel]] by using the toolbar button. You can also copy-paste data from Excel (or some another spreadsheet). Copy the data, then right-click the upper left cell in the table and choose **Paste** from the menu. 
  
-The [[user_interface#​data|data]] table displays the data for the selected time series. The table shows data for one [[dependency]] at a time. For a time series dependent on contaminants,​ a drop-down list above the table will let you choose which contaminant to enter values for. +====Clearing ​data====
  
-**Interpolation** - The interpolation field will determine how values before, between and after the time-points are interpolated/​extrapolated. ​+To remove all data 
  
-* **Interpolation-Extrapolation** – Values between ​the specified time-points are linearly interpolatedValues before the first time point and after the last time-point will be extrapolated+  ​Click a cell in the table.  
 +  ​Press CTRL+A to select all cells. 
 +  ​Press the DELETE key. 
 +   
 +====Interpolation====
  
-* **Interpolation-Use end values** – Values between the specified time-points are linearly interpolated. The value for the first time point will be used when time is less than the first time point. The value for the last time point will be used when time is larger than the last time point. +You can select how data is retrieved from the table during calculations by using the **Interpolation** drop down list:
-  +
-* **Use input nearest** – For each simulation time point the value for the nearest specified time is used.+
  
-* **Use input below** – For each simulation time point the value for the nearest of the lower specified time points is used. If none of the specified time points is lower, then the nearest of all specified time points is used. +  * **Interpolation-Extrapolation** – Values between the specified time-points are linearly interpolated. Values before the first time point and after the last time-point will be extrapolated.  
 +  * **Interpolation-Use end values** – Values between the specified time-points are linearly interpolated. The value for the first time point will be used when time is less than the first time point. The value for the last time point will be used when time is larger than the last time point. 
 +  * **Use input nearest** – For each simulation time point the value for the nearest specified time is used. 
 +  ​* **Use input below** – For each simulation time point the value for the nearest of the lower specified time points is used. If none of the specified time points is lower, then the nearest of all specified time points is used.  
 +  * **Use input above** – For each simulation time point the value for the nearest of the higher specified time points is used. If none of the specified time points is higher, then the nearest of all specified time points is used. 
  
-* **Use input above** – For each simulation time point the value for the nearest of the higher specified time points is used. If none of the specified time points is higher, then the nearest of all specified time points is used+The **Editor** will adjust to show how values are going to be used during ​the simulation.
  
-**Cyclic** - When selected the time series will be "​looped"​ and all values repeated. This feature is useful for periodic ​data, for instance one year dayly data of precipitation. Note that for cyclic lookup tables the final value(s) must be the same as the first value(s). ​+====Cyclic data====
  
-Notes:+For repeating data you can select the **Cyclic** button. The time series will then be "​looped"​ and all values repeated. ​
  
-  ​You can enter different time series for different contaminants +**Note** ​For cyclic data, you must ensure that the first value you give is the same as the last valueAlso remember to include the whole range; if you want a table to repeat a one year cycle the first data point should be for day 0 and the last for day 365.
-  - The time series start at day 0 from when the study starts. The time unit is days+
  
-===Editor===+====See also====
  
-The editor plots the time series ​as given in the table. You can hide the editor by clicking the {{editor16.png}}**Toggle*button.+  * [[Time ​series]] 
 +  ​[[User interface]]
  
time_series_screen.1401101956.txt.gz · Last modified: 2014/06/09 12:00 (external edit)