This function fits a Gamma distribution to the total transcript counts distribution across a given group of cells. Total transcript counts are normalized by the mean total transcript count across the group. This function is used to infer a Gamma distribution of the global cell-to-cell variability across pruned nearest neighbourhoods.
fitGammaRt(x)
Shape parameter of the Gamma distribution. This parameter corresponds to the dispersion explained by the global cell-to-cell variability of UMI counts in a negative binomial model.
Transcript count matrix with cells as columns and genes as rows.