RevelioGeneList         5 stage cell cycle gene marker list from
                        Revelio
circle_scale_legend     Get the cyclic legend
estimate_Schwabe_stage
                        Assign cell cycle stages using Schwabe method
estimate_cycle_position
                        Assign cell cycle position
fit_periodic_loess      Fit periodic loess line with circular predictor
neuroRef                Pre-learned reference projection matrix from
                        the Neurosphere dataset
neurosphere_example     Example SingleCellExperiment dataset
plot_ccposition_den     Plot cell cycle position kernel density
                        stratified by a factor
plot_emb_circle_scale   Plot embedding with cyclic cell cycle position
project_cycle_space     Project data into the cell cycle pattern space
run_pca_cc_genes        Run PCA on Gene Ontology cell cycle genes
