Method: Polars::Expr#set_sorted

Defined in:
lib/polars/expr.rb

#set_sorted(descending: false) ⇒ Expr

Note:

This can lead to incorrect results if this Series is not sorted!! Use with care!

Flags the expression as 'sorted'.

Enables downstream code to user fast paths for sorted arrays.

Examples:

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

Parameters:

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

    Whether the Series order is descending.

Returns:

[View source]

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# File 'lib/polars/expr.rb', line 6853

def set_sorted(descending: false)
  _from_rbexpr(_rbexpr.set_sorted_flag(descending))
end