Define linkage groups based on the:

Select an option for retaining cluster membership information.

Choose:

•

Number of Linkage Groups to specify the maximum number of clusters to form using the Number of Linkage Groups field or slider.

•

Recombination Fraction Cutoff to define clusters based on the Recombination Fraction Cutoff field or slider. An additional column is added to the output distance matrix containing the cluster membership for each row in the Input Genotype SAS Data Set. When using Recombination Fraction Cutoff, PROC TREE creates the hierarchical clustering plot only up to the cutoff level specified with the Recombination Fraction Cutoff field or slider.

To Specify How Linkage Groups are Defined:

8

Click a radio button corresponding to your choice.