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Y = constant + factor1 * value1 + factor2 * value2 + factor3 +* value3;
the constant value and the factor will be provided by location attributes.
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An example is given below.
| Code Block | ||
|---|---|---|
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id,x,y,constant,variableId,factor,inputLocationId H4300,1,1,1,input1,2,H-2001 H4300,1,1,0,input2,3,H-2002 |
In the example above several attributes are defined for output location H4300.
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This means that these attibutes can have 1 or more values. Note that multi-value location attributes should always be defined in seperate attribute file.
The attribute variable defines a avariable id in the tranformation module config file.
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| Code Block | ||
|---|---|---|
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<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2007 sp2 (http://www.altova.com) by WL | Delft Hydraulics (WL | Delft Hydraulics) -->
<transformationModule version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.wldelft.nl/fews" xsi:schemaLocation="http://www.wldelft.nl/fews http://fews.wldelft.nl/schemas/version1.0/transformationModule.xsd">
<variable>
<variableId>input1</variableId>
<timeSeriesSet>
<moduleInstanceId>InputVariableFunctionTest</moduleInstanceId>
<valueType>scalar</valueType>
<parameterId>Q.obs</parameterId>
<locationId>H-2001</locationId>
<timeSeriesType>external historical</timeSeriesType>
<timeStep unit="day"/>
<relativeViewPeriod unit="day" start="0" end="10"/>
<readWriteMode>editing visible to all future task runs</readWriteMode>
</timeSeriesSet>
</variable>
<variable>
<variableId>input2</variableId>
<timeSeriesSet>
<moduleInstanceId>InputVariableFunctionTest</moduleInstanceId>
<valueType>scalar</valueType>
<parameterId>Q.obs</parameterId>
<locationId>H-2002</locationId>
<timeSeriesType>external historical</timeSeriesType>
<timeStep unit="day"/>
<relativeViewPeriod unit="day" start="0" end="10"/>
<readWriteMode>editing visible to all future task runs</readWriteMode>
</timeSeriesSet>
</variable>
<variable>
<variableId>output</variableId>
<timeSeriesSet>
<moduleInstanceId>InputVariableFunctionTest</moduleInstanceId>
<valueType>scalar</valueType>
<parameterId>Q.obs</parameterId>
<locationId>H4300</locationId>
<timeSeriesType>simulated forecasting</timeSeriesType>
<timeStep unit="day"/>
<relativeViewPeriod unit="day" start="0" end="10"/>
<readWriteMode>editing visible to all future task runs</readWriteMode>
</timeSeriesSet>
</variable>
<transformation id="test">
<multipleLocationAttributes>
<multipleIinearRegression>
<constantAttributeId>constant</constantAttributeId>
<variableAttributeId>variableName<<variableAttributeId>variableId</variableAttributeId>
<inputLocationAttributeId>inputLocationId</inputLocationAttributeId>
<factorAttributeId>factor</factorAttributeId>
<outputVariable>
<variableId>output</variableId>
</outputVariable>
</multipleIinearRegression>
</multipleLocationAttributes>
</transformation>
</transformationModule>
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