This function is used to upload a table into R for further use in the AutoPipe
read_expression_file(file, format = "csv", sep=";",gene_name="SYMBOL", Trans=FALSE)The path of the expression table
The format of the table "csv" or "txt"
The seperator of the input table
Genes are given in "SYMBOL" or "ENTREZID"
Need Matrix Transpose TRUE or FALSE
A data.frame with a gene expression matrix