The five partitions of breast cancer were identified using as the disease feature set in the breast cancer dataset.

<p>In the figure, each microRNA corresponds to a row, and each breast cancer sample corresponds to column. The 71 breast cancer samples were divided into five subtypes (Subtype 1, Subtype 2, Subtype 3, Subtype 4 and Subtype 5). Red areas indicate increased expression, and green areas decreased expression. Each column represents a single breast cancer sample, and each row represents a single microRNA. The dendrogram at the top shows the degree to which each breast cancer subtype is related to the others with respect to microRNA expression.