how to horizontally stack data frame columns. the code below shows two data frames, I want to stack col 2 from df2 with col 1 from df1. how can I do this?
import polars as pl
df1 = pl.DataFrame(
{
"col1": ["a", "b", "c", "d"] }
)
df2 = pl.DataFrame(
{
"col2": ["1", "2", "3", "4"]
}
)