HumanDLPFC              Human dorsolateral prefrontal cortex (DLPFC)
                        visium sample
SpaNorm                 Spatially-dependent normalisation for spatial
                        transcriptomics data
SpaNormFit              An S4 class to store a SpaNorm model fit
SpaNormPCA              GLM-based (SpaNorm) PCA
SpaNormSVG              Model-based spatially variable gene (SVG)
                        calling
fastSizeFactors         Filter genes based on expression
filterGenes             Filter genes based on expression
plotCovariate           Diagnostic plot of predicted expression for a
                        covariate
plotSpatial             Plot spatial transcriptomic annotations per
                        spot
topSVGs                 Export top SVG results to a data frame
