Changes between Version 9 and Version 10 of EwEugImportTimeSeries


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Timestamp:
2012-03-08 00:08:41 (8 years ago)
Author:
jeroens
Comment:

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  • EwEugImportTimeSeries

    v9 v10  
    3838** Using data type 2, you can force nutrient concentrations (see [wiki:EwEugEcosimParameters Ecosim parameters] and links therein); parameters that affect trophic interactions through abiotic factors (see [wiki:EwEugForcingFunction Forcing function] and [wiki:EwEugApplyForcingFunctionConsumer Apply FF (consumer)]) or primary production (see [wiki:EwEugApplyForcingFunctionPrimaryProducer Apply FF (primary producer)]). 
    3939 
    40 *** Forcing catches enables [wiki:EwEugUsingEcosimForStockReductionAnalysis Use of Ecosim for Stock Reduction Analysis]. 
     40*** Forcing catches enables [wiki:EwEugUsingEcosimForStockReductionAnalysis Use of Ecosim for Stock Reduction Analysis]. 
    4141 
    4242How to import a time series data file 
     
    4444Important note. After importing a time series file, you must weight the time series using the Time series form. 
    4545 
    46 Note that you must already have an Ecosim scenario loaded before you can import a time series data file (see [EwEugGettingStartedEcosim Ecosim menu] for instructions for creating and loading Ecosim scenarios). 
     46Note that you must already have an Ecosim scenario loaded before you can import a time series data file (see [wiki:EwEugGettingStartedEcosim Ecosim menu] for instructions for creating and loading Ecosim scenarios). 
    4747 
    4848The Import time series dialogue box (Figure 8.8) allows you to load time series data stored in CSV (comma separated values) or similar text format. It can be accessed: 
     
    6060''New in version 6.3: Adding confidence measures to time series'' 
    6161 
    62 It is possible to set the c.v. (or coefficient of variation calculated as the standard deviation of a time series' estimates relative to its mean) for time series as an optional second line in the csv time series file. Mark the second line in the file with "CV" in that case. From the CV we calculate the time series weight at the inverse, i.e. as the "signal to noise" ratio for the time series. The c.v. input have to be complete and positive values. Variability is assumed to be log-normal, in which case the CV is approximately equal to the standard deviation of the log prediction error. Weight is calculated from cv as equal to 1/CV^2. Note that you can replace the calculation with your own, and enter "Weight" directly as the optional second line of the csv time series files. 
     62It is possible to set the c.v. (or coefficient of variation calculated as the standard deviation of a time series' estimates relative to its mean) for time series as an optional second line in the csv time series file. Mark the second line in the file with "CV" in that case. From the CV we calculate the time series weight at the inverse, i.e. as the "signal to noise" ratio for the time series. The c.v. input have to be complete and positive values. Variability is assumed to be log-normal, in which case the CV is approximately equal to the standard deviation of the log prediction error. Weight is calculated from cv as equal to 1/CV!^2. Note that you can replace the calculation with your own, and enter "Weight" directly as the optional second line of the csv time series files.