Python pandas.core.indexes.base.Index() Examples
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code examples of pandas.core.indexes.base.Index().
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Example #1
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 6 votes |
def _reindex_non_unique(self, target): """ reindex from a non-unique; which CategoricalIndex's are almost always """ new_target, indexer = self.reindex(target) new_indexer = None check = indexer == -1 if check.any(): new_indexer = np.arange(len(self.take(indexer))) new_indexer[check] = -1 cats = self.categories.get_indexer(target) if not (cats == -1).any(): # .reindex returns normal Index. Revert to CategoricalIndex if # all targets are included in my categories new_target = self._shallow_copy(new_target) return new_target, indexer, new_indexer
Example #2
Source File: range.py From elasticintel with GNU General Public License v3.0 | 6 votes |
def _simple_new(cls, start, stop=None, step=None, name=None, dtype=None, **kwargs): result = object.__new__(cls) # handle passed None, non-integers if start is None and stop is None: # empty start, stop, step = 0, 0, 1 if start is None or not is_integer(start): try: return RangeIndex(start, stop, step, name=name, **kwargs) except TypeError: return Index(start, stop, step, name=name, **kwargs) result._start = start result._stop = stop or 0 result._step = step or 1 result.name = name for k, v in compat.iteritems(kwargs): setattr(result, k, v) result._reset_identity() return result
Example #3
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 6 votes |
def equals(self, other): """ Determines if two CategorialIndex objects contain the same elements. """ if self.is_(other): return True if not isinstance(other, Index): return False try: other = self._is_dtype_compat(other) return array_equivalent(self._data, other) except (TypeError, ValueError): pass return False
Example #4
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 6 votes |
def _convert_list_indexer(self, keyarr, kind=None): # Return our indexer or raise if all of the values are not included in # the categories if self.categories._defer_to_indexing: indexer = self.categories._convert_list_indexer(keyarr, kind=kind) return Index(self.codes).get_indexer_for(indexer) indexer = self.categories.get_indexer(np.asarray(keyarr)) if (indexer == -1).any(): raise KeyError( "a list-indexer must only " "include values that are " "in the categories") return self.get_indexer(keyarr)
Example #5
Source File: category.py From elasticintel with GNU General Public License v3.0 | 6 votes |
def _convert_list_indexer(self, keyarr, kind=None): # Return our indexer or raise if all of the values are not included in # the categories if self.categories._defer_to_indexing: indexer = self.categories._convert_list_indexer(keyarr, kind=kind) return Index(self.codes).get_indexer_for(indexer) indexer = self.categories.get_indexer(np.asarray(keyarr)) if (indexer == -1).any(): raise KeyError( "a list-indexer must only " "include values that are " "in the categories") return self.get_indexer(keyarr)
Example #6
Source File: range.py From vnpy_crypto with MIT License | 6 votes |
def _simple_new(cls, start, stop=None, step=None, name=None, dtype=None, **kwargs): result = object.__new__(cls) # handle passed None, non-integers if start is None and stop is None: # empty start, stop, step = 0, 0, 1 if start is None or not is_integer(start): try: return RangeIndex(start, stop, step, name=name, **kwargs) except TypeError: return Index(start, stop, step, name=name, **kwargs) result._start = start result._stop = stop or 0 result._step = step or 1 result.name = name for k, v in compat.iteritems(kwargs): setattr(result, k, v) result._reset_identity() return result
Example #7
Source File: category.py From elasticintel with GNU General Public License v3.0 | 6 votes |
def _reindex_non_unique(self, target): """ reindex from a non-unique; which CategoricalIndex's are almost always """ new_target, indexer = self.reindex(target) new_indexer = None check = indexer == -1 if check.any(): new_indexer = np.arange(len(self.take(indexer))) new_indexer[check] = -1 cats = self.categories.get_indexer(target) if not (cats == -1).any(): # .reindex returns normal Index. Revert to CategoricalIndex if # all targets are included in my categories new_target = self._shallow_copy(new_target) return new_target, indexer, new_indexer
Example #8
Source File: category.py From elasticintel with GNU General Public License v3.0 | 6 votes |
def equals(self, other): """ Determines if two CategorialIndex objects contain the same elements. """ if self.is_(other): return True if not isinstance(other, Index): return False try: other = self._is_dtype_compat(other) return array_equivalent(self._data, other) except (TypeError, ValueError): pass return False
Example #9
Source File: range.py From Splunking-Crime with GNU Affero General Public License v3.0 | 6 votes |
def _simple_new(cls, start, stop=None, step=None, name=None, dtype=None, **kwargs): result = object.__new__(cls) # handle passed None, non-integers if start is None and stop is None: # empty start, stop, step = 0, 0, 1 if start is None or not is_integer(start): try: return RangeIndex(start, stop, step, name=name, **kwargs) except TypeError: return Index(start, stop, step, name=name, **kwargs) result._start = start result._stop = stop or 0 result._step = step or 1 result.name = name for k, v in compat.iteritems(kwargs): setattr(result, k, v) result._reset_identity() return result
Example #10
Source File: category.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def is_monotonic_increasing(self): return Index(self.codes).is_monotonic_increasing
Example #11
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def delete(self, loc): """ Make new Index with passed location(-s) deleted Returns ------- new_index : Index """ return self._create_from_codes(np.delete(self.codes, loc))
Example #12
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def insert(self, loc, item): """ Make new Index inserting new item at location. Follows Python list.append semantics for negative values Parameters ---------- loc : int item : object Returns ------- new_index : Index Raises ------ ValueError if the item is not in the categories """ code = self.categories.get_indexer([item]) if (code == -1): raise TypeError("cannot insert an item into a CategoricalIndex " "that is not already an existing category") codes = self.codes codes = np.concatenate((codes[:loc], code, codes[loc:])) return self._create_from_codes(codes)
Example #13
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def _add_comparison_methods(cls): """ add in comparison methods """ def _make_compare(op): def _evaluate_compare(self, other): # if we have a Categorical type, then must have the same # categories if isinstance(other, CategoricalIndex): other = other._values elif isinstance(other, Index): other = self._create_categorical( self, other._values, categories=self.categories, ordered=self.ordered) if isinstance(other, (ABCCategorical, np.ndarray, ABCSeries)): if len(self.values) != len(other): raise ValueError("Lengths must match to compare") if isinstance(other, ABCCategorical): if not self.values.is_dtype_equal(other): raise TypeError("categorical index comparisions must " "have the same categories and ordered " "attributes") return getattr(self.values, op)(other) return _evaluate_compare cls.__eq__ = _make_compare('__eq__') cls.__ne__ = _make_compare('__ne__') cls.__lt__ = _make_compare('__lt__') cls.__gt__ = _make_compare('__gt__') cls.__le__ = _make_compare('__le__') cls.__ge__ = _make_compare('__ge__')
Example #14
Source File: range.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def equals(self, other): """ Determines if two Index objects contain the same elements. """ if isinstance(other, RangeIndex): ls = len(self) lo = len(other) return (ls == lo == 0 or ls == lo == 1 and self._start == other._start or ls == lo and self._start == other._start and self._step == other._step) return super(RangeIndex, self).equals(other)
Example #15
Source File: interval.py From recruit with Apache License 2.0 | 5 votes |
def left(self): """ Return the left endpoints of each Interval in the IntervalArray as an Index """ return self._left
Example #16
Source File: category.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def is_monotonic_decreasing(self): return Index(self.codes).is_monotonic_decreasing
Example #17
Source File: category.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def delete(self, loc): """ Make new Index with passed location(-s) deleted Returns ------- new_index : Index """ return self._create_from_codes(np.delete(self.codes, loc))
Example #18
Source File: category.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def insert(self, loc, item): """ Make new Index inserting new item at location. Follows Python list.append semantics for negative values Parameters ---------- loc : int item : object Returns ------- new_index : Index Raises ------ ValueError if the item is not in the categories """ code = self.categories.get_indexer([item]) if (code == -1): raise TypeError("cannot insert an item into a CategoricalIndex " "that is not already an existing category") codes = self.codes codes = np.concatenate((codes[:loc], code, codes[loc:])) return self._create_from_codes(codes)
Example #19
Source File: category.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def _add_comparison_methods(cls): """ add in comparison methods """ def _make_compare(op): def _evaluate_compare(self, other): # if we have a Categorical type, then must have the same # categories if isinstance(other, CategoricalIndex): other = other._values elif isinstance(other, Index): other = self._create_categorical( self, other._values, categories=self.categories, ordered=self.ordered) if isinstance(other, (ABCCategorical, np.ndarray, ABCSeries)): if len(self.values) != len(other): raise ValueError("Lengths must match to compare") if isinstance(other, ABCCategorical): if not self.values.is_dtype_equal(other): raise TypeError("categorical index comparisions must " "have the same categories and ordered " "attributes") return getattr(self.values, op)(other) return _evaluate_compare cls.__eq__ = _make_compare('__eq__') cls.__ne__ = _make_compare('__ne__') cls.__lt__ = _make_compare('__lt__') cls.__gt__ = _make_compare('__gt__') cls.__le__ = _make_compare('__le__') cls.__ge__ = _make_compare('__ge__')
Example #20
Source File: range.py From elasticintel with GNU General Public License v3.0 | 5 votes |
def equals(self, other): """ Determines if two Index objects contain the same elements. """ if isinstance(other, RangeIndex): ls = len(self) lo = len(other) return (ls == lo == 0 or ls == lo == 1 and self._start == other._start or ls == lo and self._start == other._start and self._step == other._step) return super(RangeIndex, self).equals(other)
Example #21
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def is_monotonic_increasing(self): return Index(self.codes).is_monotonic_increasing
Example #22
Source File: category.py From Splunking-Crime with GNU Affero General Public License v3.0 | 5 votes |
def is_monotonic_decreasing(self): return Index(self.codes).is_monotonic_decreasing
Example #23
Source File: range.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def equals(self, other): """ Determines if two Index objects contain the same elements. """ if isinstance(other, RangeIndex): ls = len(self) lo = len(other) return (ls == lo == 0 or ls == lo == 1 and self._start == other._start or ls == lo and self._start == other._start and self._step == other._step) return super(RangeIndex, self).equals(other)
Example #24
Source File: interval.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def mid(self): """ Return the midpoint of each Interval in the IntervalArray as an Index """ try: return 0.5 * (self.left + self.right) except TypeError: # datetime safe version return self.left + 0.5 * self.length
Example #25
Source File: interval.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def length(self): """ Return an Index with entries denoting the length of each Interval in the IntervalArray """ try: return self.right - self.left except TypeError: # length not defined for some types, e.g. string msg = ('IntervalArray contains Intervals without defined length, ' 'e.g. Intervals with string endpoints') raise TypeError(msg)
Example #26
Source File: interval.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def right(self): """ Return the right endpoints of each Interval in the IntervalArray as an Index """ return self._right
Example #27
Source File: interval.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def left(self): """ Return the left endpoints of each Interval in the IntervalArray as an Index """ return self._left
Example #28
Source File: interval.py From recruit with Apache License 2.0 | 5 votes |
def __getitem__(self, value): left = self.left[value] right = self.right[value] # scalar if not isinstance(left, Index): if isna(left): return self._fill_value return Interval(left, right, self.closed) return self._shallow_copy(left, right)
Example #29
Source File: interval.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def __getitem__(self, value): left = self.left[value] right = self.right[value] # scalar if not isinstance(left, Index): if isna(left): return self._fill_value return Interval(left, right, self.closed) return self._shallow_copy(left, right)
Example #30
Source File: interval.py From recruit with Apache License 2.0 | 5 votes |
def right(self): """ Return the right endpoints of each Interval in the IntervalArray as an Index """ return self._right