Secondary Annotation Position Variable

Use this field to specify the variable whose values indicate the genetic position of each of the SNPs or probesets on the chromosome.

This variable is specified here when this information is not included in the input data set.

When this variable is specified along with a chromosome variable, negative log10 p-value results are plotted by chromosome and position.

To Specify the Secondary Annotation Position Variable:

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Specify the Secondary Annotation SAS Data Set.

All of the variables in the specified input data set are displayed in the Available Variables field.

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Examine the list of available variables.

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Highlight the desired variable.

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Click to add the highlighted variable to the Secondary Annotation Position Variable field, as shown below: