Annotate Seurat object of several patients

[LeaLe88]

Good afternoon,

I would like to annotate the cells in my Seurat object. It was simple when I had one patient in my Seurat object with:

pbmc_counts_1 <- GetAssayData(kid.filtered, slot = 'counts.Patient_1')

pred <- SingleR(test = pbmc_counts_1,
        ref = ref,
        labels = ref$label.main)

However, how do I do it with several patients? I would also like to annotate based on the counts of patients 2, 3,etc.: Please post issues in https://github.com/LTLA/SingleR

Thank you very much for any input!