how to classify groups for bird what two variables are categorical in r what is the range of species of a bird where do bird populations overlap what is a categorical snp for what types of variables for hierarchical clustering? which variable represents the presence of a heterozygote? what is the colour of an individual bird in sweden what is the variable for classification in hierarchical clustering what is the range of the categorical variable what's the smallest variable in the hierarchical cluster how to do hierarchical clustering which type of cluster is used for categorical clusters which is the most categorical variable of r? which variable is categorical what is the name of the variable for the migratory divergence which variable is classified as continuous ___________ is a categorical variable which variable is categorical why are hierarchical clustering variables useful?