Skip to content Skip to sidebar Skip to footer
Showing posts with the label Set

What Is Pythononic Way Of Slicing A Set?

I have some list of data, for example some_data = [1, 2, 4, 1, 6, 23, 3, 56, 6, 2, 3, 5, 6, 32, 2, … Read more What Is Pythononic Way Of Slicing A Set?

Set Comprehensions Don't Work On Pydev (python)

{x for x in range(10)} works perfectly on IDLE, but when I try this in eclipse (with Pydev plugin)… Read more Set Comprehensions Don't Work On Pydev (python)

How To Check If All Elements In A Tuple Or List Are In Another?

For example, I want to check every elements in tuple (1, 2) are in tuple (1, 2, 3, 4, 5). I don'… Read more How To Check If All Elements In A Tuple Or List Are In Another?

Attributeerror: 'nonetype' Object Has No Attribute 'add'

I got the following error AttributeError: 'NoneType' object has no attribute 'add'… Read more Attributeerror: 'nonetype' Object Has No Attribute 'add'

Separating Nltk.freqdist Words Into Two Lists?

I have a series of texts that are instances of a custom WebText class. Each text is an object that … Read more Separating Nltk.freqdist Words Into Two Lists?

Please Explain "set Difference" In Python

Trying to learn Python I encountered the following: >>> set('spam') - set('ham… Read more Please Explain "set Difference" In Python

Disjoint-set Forests In Python Alternate Implementation

I'm implementing a disjoint set system in Python, but I've hit a wall. I'm using a tree… Read more Disjoint-set Forests In Python Alternate Implementation

Constructing A Python Set From A Numpy Matrix

I'm trying to execute the following >> from numpy import * >> x = array([[3,2,3],[4… Read more Constructing A Python Set From A Numpy Matrix

Check If String Begins With One Of Several Substrings In Python

I couldn't figure out how to perform line.startswith('substring') for a set of substrin… Read more Check If String Begins With One Of Several Substrings In Python

List Comprehension And Intersection Problem

list(set(a[0]) & set(a[1]) & set(a[2]) & set(a[3]) & set(a[4])) Does anyone know h… Read more List Comprehension And Intersection Problem

Hashable Data Structure With No Order And Allowed Duplicates

I have list of tuples/lists (-1, 0, 1) (-1, 1, 0) (-1, 2, -1) (-1, -1, 2) (0, 1, -1) I need them to… Read more Hashable Data Structure With No Order And Allowed Duplicates

Grouping Integers By Set Membership In Python

Working in Python, given a list of N sets of integers from the range range(s,n), how can I build a … Read more Grouping Integers By Set Membership In Python

Find Sets That Contain At Least One Element From Other Sets

Suppose we are given n sets and want to construct all minimal sets that have at least one element i… Read more Find Sets That Contain At Least One Element From Other Sets

Python: Calculate Difference Between All Elements In A Set Of Integers

I want to calculate absolute difference between all elements in a set of integers. I am trying to d… Read more Python: Calculate Difference Between All Elements In A Set Of Integers

I Want To Input A List Of Intervals And Check The Intervals Of The Union Of Overlapping Intervals And The Intervals Of Non-overlapping Intervals

For example: I have the intervals = [[-5,-3],[-4,-1],[1,3],[4,8],[5,10],[10,12], [15,20]] (not nece… Read more I Want To Input A List Of Intervals And Check The Intervals Of The Union Of Overlapping Intervals And The Intervals Of Non-overlapping Intervals

How Can I Run A Set Method Over Lists In Terms Of Dictionary Keys / Values To Find Unique Items And List The Comparison Results?

I have a dictionary with values as lists of text values. (ID : [text values]) Below is an excerpt. … Read more How Can I Run A Set Method Over Lists In Terms Of Dictionary Keys / Values To Find Unique Items And List The Comparison Results?

I Want To Input A List Of Intervals And Check The Intervals Of The Union Of Overlapping Intervals And The Intervals Of Non-overlapping Intervals

For example: I have the intervals = [[-5,-3],[-4,-1],[1,3],[4,8],[5,10],[10,12], [15,20]] (not nece… Read more I Want To Input A List Of Intervals And Check The Intervals Of The Union Of Overlapping Intervals And The Intervals Of Non-overlapping Intervals

Python IsDisjoint() Runtime

What is the algorithmic runtime of Python 2.7's isDisjoint(other) method for sets? Is it faster… Read more Python IsDisjoint() Runtime

Unexpected Behavior For Python Set.__contains__

Borrowing the documentation from the __contains__ documentation print set.__contains__.__doc__ x.__… Read more Unexpected Behavior For Python Set.__contains__

Python: Powerset Of A Given Set With Generators

I am trying to build a list of subsets of a given set in Python with generators. Say I have set([1… Read more Python: Powerset Of A Given Set With Generators