Fig. 6.

PRRR identifies similar expression patterns in islet cell types. Shown here is the latent encoding of each cell type for each pair of latent variables in $\mathbf{U}$, where PRRR was fitted with $R=5$ Each point in each subplot represents a cell type, and cell types are colored by whether they are classified as islet cells or not. The densities on the diagonal show the distribution of $\mathbf{U}$ values for islet and non-islet cell types in each latent dimension