Method: Polars::Expr#mode

Defined in:
lib/polars/expr.rb

#mode(maintain_order: false) ⇒ Expr

Compute the most occurring value(s).

Can return multiple Values.

Examples:

df = Polars::DataFrame.new(
  {
    "a" => [1, 1, 2, 3],
    "b" => [1, 1, 2, 2]
  }
)
df.select(Polars.all.mode.first)
# =>
# shape: (2, 2)
# ┌─────┬─────┐
# │ a   ┆ b   │
# │ --- ┆ --- │
# │ i64 ┆ i64 │
# ╞═════╪═════╡
# │ 1   ┆ 1   │
# │ 1   ┆ 2   │
# └─────┴─────┘

Parameters:

  • maintain_order (Boolean) (defaults to: false) —

    Maintain order of data. This requires more work.

Returns:



1263
1264
1265
 
# File 'lib/polars/expr.rb', line 1263

def mode(maintain_order: false)
  wrap_expr(_rbexpr.mode(maintain_order))
end