I am new to single-cell RNA sequencing and am trying to add additional metadata to my Seurat object. The problem is that the methods I’m using (merge, left_join, full_join, AddMetaData, etc) change the dimensions of my metadata or simply do not work. The errors I am receiving using either method is:

I am new to single-cell RNA sequencing and am trying to add additional metadata to my Seurat object. The problem is that the methods I’m using (merge, left_join, full_join, AddMetaData, etc) change the dimensions of my metadata or simply do not work. The errors I am receiving using either method is: