list-comprehension

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Dynamically parsing research data in python

The long (winded) version: I\'m gathering research data using Python. My initial parsing is ugly (but functional) code which gives me some basic information and turns my raw data into a format suitabl[详细]

2023-03-07 11:20 分类：问答
List comprehension in Haskell

I\'ve been using the following code to get all combinations of a pre-determined amount of numbers: getList x = [ [a,b,c] | a <- [1..x], b <- [1..x], c <- [1..x]][详细]

2023-03-05 06:03 分类：问答
How can I use a list comprehension to extend a list in python? [duplicate]

This question already has answers here: list.extend and list comprehension [duplicate] (6 answers) Closed 4 years ago.[详细]

2023-03-05 05:30 分类：问答
Haskell parallel and generalized (SQL-like) list comprehension problem

Maybe I\'m misreading the docs (http://www.haskell.org/ghc/docs/7.0.1/html/users_guide/syntax-extns.html#parallel-list-comprehensions) but in the following code I\'d expect the list comprehe开发者_Sta[详细]

2023-03-04 14:22 分类：问答
Line continuation for list comprehensions or generator expressions in python

How are you supposed to break up a very long list comprehension? [something_that_开发者_如何学Gois_pretty_long for something_that_is_pretty_long in somethings_that_are_pretty_long][详细]

2023-03-01 16:02 分类：问答
Python: Difference between != and "is not" [duplicate]

This question already has answers here: Python 'is not' operator (4 answers) Closed 17 days ago.[详细]

2023-03-01 03:00 分类：问答
python: single-line cartesian product for-loop

Did you know you can do this? >>> [(x,y) for x in xrange(2) for y in xrange(5)] [(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (1, 0), (1, 1), (1, 2), (1, 3), (1, 4)][详细]

2023-02-28 18:01 分类：问答
Applying a method with no return value to each element of a list [duplicate]

This question already has answers here: Is it Pythonic to use list comprehensions for just side effects?[详细]

2023-02-28 02:38 分类：问答
Nested array comprehensions in CoffeeScript

In Python def cross(A, B): \"Cross product of elements in A and elements in B.\" return [a+b for a in A for b in B][详细]

2023-02-25 01:01 分类：问答
Erlang list comprehension

I\'m testing an expression with two inequalities for the condition of a list comprehension. Is there a way to have assignments here and not duplicate that expression?[详细]

2023-02-24 23:52 分类：问答