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Add multiple new columns to the obs table

set_sc_new_obs_col_multiple.Rd

Add multiple new columns to the obs table

Usage

set_sc_new_obs_col_multiple(object, new_data)

Arguments

object

SingleCells class.

new_data

Named list. The names will be the column names and the elements will be added to the obs table. Needs to be of same length as get_cells_to_keep() and have the same order!

Value

The class with updated obs table in the DuckDB

Examples

# several columns in one go
sc <- demo_single_cells(prepped = FALSE)
n_cells <- dim(sc)[1]
sc <- set_sc_new_obs_col_multiple(
  sc,
  new_data = list(
    arm = rep(c("ctrl", "treated"), length.out = n_cells),
    donor = rep(sprintf("donor_%i", 1:4), length.out = n_cells)
  )
)
head(get_sc_obs(sc)[, c("arm", "donor")], 3)
#>        arm   donor
#>     <char>  <char>
#> 1:    ctrl donor_1
#> 2: treated donor_2
#> 3:    ctrl donor_3

unlink(sc@dir_data, recursive = TRUE, force = TRUE)