This field is used only when one or more of the data sets selected, after the first, uses a variable with another name for the p-Value Variable . All variable names for the 2 nd through the last data set must be specified here.To Specify Additional P -Value Variables:
For example, to specify the additional major allele variables NegLog_pvalue_1 and NegLog_pvalue_2 , type NegLog_pvalue_1 NegLog_pvalue_2 in the text box, as shown below: