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Generate overall aggregated gene proportion expression

Source: R/run_scfeatures.R
run_gene_prop.Rd

This function computes the proportion of gene expression across samples. The user can specify the genes of interest, or let the function use the top variable genes by default. The function supports scRNA-seq, spatial proteomics, and spatial transcriptomics.

Usage

run_gene_prop(
  data,
  type = "scrna",
  genes = NULL,
  num_top_gene = NULL,
  ncores = 1
)

Arguments

data

A list object containing data matrix and celltype and sample vector.

type

The type of dataset, either "scrna", "spatial_t", or "spatial_p".

genes

Default to NULL, in which case the top variable genes will be used. If provided by user, need to be in the format of a list containing the genes of interest, eg, genes <- c(GZMA", "GZMK", "CCR7", "RPL38" )

num_top_gene

Number of top variable genes to use when genes is not provided. Defaults to 1500.

ncores

Number of cores for parallel processing.

Value

a dataframe of samples x features The features are in the form of gene 1 vs gene 2, gene 1 vs gene 3 ... etc, with the numbers representing correlation of gene expressions.

Examples


utils::data("example_scrnaseq" , package = "scFeatures")
data <- example_scrnaseq[1:50, 1:20]
celltype <- data$celltype
sample <- data$sample
data <- data@assays$RNA@data

alldata <- scFeatures:::formatData(data = data, celltype = celltype, sample = sample )
feature_gene_prop <- run_gene_prop(alldata, type = "scrna", num_top_gene = 10, ncores = 1)