The use of contrasts can be automated in BrainVoyager QX via the steps shown below.
Via scripting |
Via the BrainVoyager user interface |
1. Create a BrainVoyager document variable with OpenDocument() or ActiveDocument(). The ActiveDocument() method returns a document that is present in the BrainVoyager main window. |
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2. A *.glm file can be loaded with the command LoadGLM(). |
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3. Clear the current contrast values with the method ClearContrasts(). |
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4. Insert a new contrast via AddContrast().
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5. Next, a contrast value can be set in different ways.
Via SetContrastValue(), this requires a predictor name and a positive or negative value: "LVF", +1
Or via the method SetContrastString(); this method expects a string with values for all predictors: "1 -1 0 0".
Also available is the method SetContrastValueAtIndex(). The index number of the predictor should be provided and a positive or negative value. The numbering of the predictors starts with 1: 1, +1
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6. Show the contrasts via ShowGLM(). |
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