Method: Polars::Expr#eq

Defined in:

lib/polars/expr.rb

#eq(other) ⇒ Expr

Method equivalent of equality operator expr == other.

Examples:

df = Polars::DataFrame.new(
  {
    "x" => [1.0, 2.0, Float::NAN, 4.0],
    "y" => [2.0, 2.0, Float::NAN, 4.0]
  }
)
df.with_columns(
  Polars.col("x").eq(Polars.col("y")).alias("x == y")
)
# =>
# shape: (4, 3)
# ┌─────┬─────┬────────┐
# │ x   ┆ y   ┆ x == y │
# │ --- ┆ --- ┆ ---    │
# │ f64 ┆ f64 ┆ bool   │
# ╞═════╪═════╪════════╡
# │ 1.0 ┆ 2.0 ┆ false  │
# │ 2.0 ┆ 2.0 ┆ true   │
# │ NaN ┆ NaN ┆ true   │
# │ 4.0 ┆ 4.0 ┆ true   │
# └─────┴─────┴────────┘

Parameters:

• other (Object) —

  A literal or expression value to compare with.

Returns:

• (Expr)

# File 'lib/polars/expr.rb', line 3191

def eq(other)
  self == other
end