Select a variable indicating the chromosome . When specified, this variable overrides the Chromosome Variable (if available) from the General tab. When this variable is specified along with a Position Variable, negative log 10 p-value results are plotted by chromosome and position.The Available Variables field is populated with variables from the specified data set.
Left-click a variable from the Available Variables field.
Click to add the selected variable to the Exon Annotation Chromosome Variable field.