Method: Polars::StringExpr#to_time

Defined in:
lib/polars/string_expr.rb

#to_time(format = nil, strict: true, cache: true) ⇒ Expr

Convert a Utf8 column into a Time column.

Examples:

s = Polars::Series.new(["01:00", "02:00", "03:00"])
s.str.to_time("%H:%M")
# =>
# shape: (3,)
# Series: '' [time]
# [
#         01:00:00
#         02:00:00
#         03:00:00
# ]

Parameters:

  • format (String) (defaults to: nil) —

    Format to use for conversion. Refer to the chrono crate documentation for the full specification. Example: "%H:%M:%S". If set to nil (default), the format is inferred from the data.

  • strict (Boolean) (defaults to: true) —

    Raise an error if any conversion fails.

  • cache (Boolean) (defaults to: true) —

    Use a cache of unique, converted times to apply the conversion.

Returns:



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# File 'lib/polars/string_expr.rb', line 137

def to_time(format = nil, strict: true, cache: true)
  _validate_format_argument(format)
  Utils.wrap_expr(_rbexpr.str_to_time(format, strict, cache))
end