Method: Polars::StringNameSpace#slice

Defined in:
lib/polars/string_name_space.rb

#slice(offset, length = nil) ⇒ Series

Create subslices of the string values of a Utf8 Series.

Examples:

s = Polars::Series.new("s", ["pear", nil, "papaya", "dragonfruit"])
s.str.slice(-3)
# =>
# shape: (4,)
# Series: 's' [str]
# [
#         "ear"
#         null
#         "aya"
#         "uit"
# ]

Using the optional length parameter

s.str.slice(4, 3)
# =>
# shape: (4,)
# Series: 's' [str]
# [
#         ""
#         null
#         "ya"
#         "onf"
# ]

Parameters:

  • offset (Integer) —

    Start index. Negative indexing is supported.

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

    Length of the slice. If set to nil (default), the slice is taken to the end of the string.

Returns:



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# File 'lib/polars/string_name_space.rb', line 1092

def slice(offset, length = nil)
  s = Utils.wrap_s(_s)
  s.to_frame.select(Polars.col(s.name).str.slice(offset, length)).to_series
end