Use this field to specify the variable containing the names whose values exactly match the names of the marker recombination rate variables.Note : If the Input SAS Data Set was created using the Recombination and Linkage Groups process, you can select the Marker_Name variable. This variable, which is generated by the Recombination and Linkage Group process is a valid option for this field.All of the variables in the specified input data set are displayed in the Available Variables field.