Parameters | Expression Parameters | y-Coordinate Variable

y-Coordinate Variable
Use this field to specify the variable whose values specify the y-coordinates for all of the spots on the microarray.
To Specify the Y-Coordinate Variable:
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All of the variables in the coordinate data set are displayed in the Available Variables field.
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Highlight the variable listing the y-coordinates of the spots on the array.
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Click to add the highlighted variable to the Y-Coordinate Variable field, as shown below: