Create new variable from categories in meta.data — Map_New

Designed for fast variable creation when a new variable is going to be created from existing variable. For example, mapping multiple samples to experimental condition.

Map_New_Meta(seurat_object, from, new_col = NULL, ...)

Arguments

seurat_object: name of Seurat object
from: current column in meta.data to map from
new_col: name of new column in meta.data to add new mapped variable. If NULL (default) will return the variable. If name provided will return Seurat object with new variable added.
...: Mapping criteria, argument names are original existing categories in the from calumn and values are new categories in the new variable.

Value

if new_col = NULL returns factor else returns Seurat object with new variable added.

References

This function is slightly modified version of LIGER function mapCellMeta to allow functionality with Seurat objects. https://github.com/welch-lab/liger. (License: GPL-3).

Examples

if (FALSE) {
seurat_object <- Map_New_Meta(seurat_object, from = "orig.ident", new_col = "Treatment",
"1" = "Ctrl", "2" = "Treated", "3" = "Treated", "4" = "Ctrl")
}