Method: Polars::Expr#explode

Defined in:

lib/polars/expr.rb

#explode(empty_as_null: true, keep_nulls: true) ⇒ Expr

Explode a list or utf8 Series.

This means that every item is expanded to a new row.

Examples:

df = Polars::DataFrame.new({"b" => [[1, 2, 3], [4, 5, 6]]})
df.select(Polars.col("b").explode)
# =>
# shape: (6, 1)
# ┌─────┐
# │ b   │
# │ --- │
# │ i64 │
# ╞═════╡
# │ 1   │
# │ 2   │
# │ 3   │
# │ 4   │
# │ 5   │
# │ 6   │
# └─────┘

Returns:

• (Expr)

# File 'lib/polars/expr.rb', line 3551

def explode(empty_as_null: true, keep_nulls: true)
  wrap_expr(_rbexpr.explode(empty_as_null, keep_nulls))
end