Method: Polars::Expr#shuffle

Defined in:
lib/polars/expr.rb

#shuffle(seed: nil) ⇒ Expr

Shuffle the contents of this expr.

Examples:

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

Parameters:

  • seed (Integer) (defaults to: nil) —

    Seed for the random number generator. If set to nil (default), a random seed is generated using the random module.

Returns:



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# File 'lib/polars/expr.rb', line 7201

def shuffle(seed: nil)
  if seed.nil?
    seed = rand(10000)
  end
  wrap_expr(_rbexpr.shuffle(seed))
end