Solution to the clustering exercise
This solution assumes that you already have the data
shap
ready, and that the cluster
and
scatterplot3d
packages are loaded.
agn=agnes(shap,method='complete')
classes = cutree(as.hclust(agn),k=5)
colors = c("red","green","blue","black","pink")
scatterplot3d(shap,color=colors[classes])
Incidentally, this solution shows how you can choose your own
colors. Most of the time you won't care about the colors, except
that they should be different for the different classes. In that
case we may use
scatterplot3d(shap,color=classes) #R will choose the colors