Classe « RangeIndex »

Méthode pandas.RangeIndex.get_loc

Signature de la méthode get_loc

def get_loc(self, key, method=None, tolerance=None) 

Description

get_loc.__doc__

Get integer location, slice or boolean mask for requested label.

Parameters
----------
key : label
method : {None, 'pad'/'ffill', 'backfill'/'bfill', 'nearest'}, optional
    * default: exact matches only.
    * pad / ffill: find the PREVIOUS index value if no exact match.
    * backfill / bfill: use NEXT index value if no exact match
    * nearest: use the NEAREST index value if no exact match. Tied
      distances are broken by preferring the larger index value.
tolerance : int or float, optional
    Maximum distance from index value for inexact matches. The value of
    the index at the matching location must satisfy the equation
    ``abs(index[loc] - key) <= tolerance``.

Returns
-------
loc : int if unique index, slice if monotonic index, else mask

Examples
--------
>>> unique_index = pd.Index(list('abc'))
>>> unique_index.get_loc('b')
1

>>> monotonic_index = pd.Index(list('abbc'))
>>> monotonic_index.get_loc('b')
slice(1, 3, None)

>>> non_monotonic_index = pd.Index(list('abcb'))
>>> non_monotonic_index.get_loc('b')
array([False,  True, False,  True])