Adds additional data for single cells to the Seurat object. Can be any piece of information associated with a cell (examples include read depth, alignment rate, experimental batch, or subpopulation identity). The advantage of adding it to the Seurat object is so that it can be analyzed/visualized using FetchData, VlnPlot, GenePlot, SubsetData, etc.
AddMetaData(object, metadata, col.name = NULL)Seurat object
Data frame where the row names are cell names (note : these must correspond exactly to the items in object@cell.names), and the columns are additional metadata items.
Name for metadata if passing in single vector of information
Seurat object where the additional metadata has been added as columns in object@meta.data