Parameters | Expression Parameters | Annotation Chromosome Variable

Annotation Chromosome Variable
Use this field to specify the variable whose values indicate the chromosome on which the SNPs or probesets are located.
This variable is specified here when this information is not included in the Input SAS Data Set .
When this variable is specified along with an Annotation Position Variable , the output negative log p-values are plotted by chromosome and position.
To Specify the Annotation Chromosome Variable:
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All of the variables in the specified annotation data set are displayed in the Available Variables field.
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Click to add the highlighted variable to the Annotation Chromosome Variable field, as shown below: