Compare two lists and return Boolean
I would use MapSet.subset?/2 here:
iex[1]> list1 = [1, 2, 3, 4, 5, 6, 7] [1, 2, 3, 4, 5, 6, 7] iex[2]> list2 = [3, 4, 5] [3, 4, 5] iex[3]> MapSet.new[list2] |> MapSet.subset?[MapSet.new[list1]] true iex[4]> list2 = [3, 4, 5, 9] [3, 4, 5, 9] iex[5]> MapSet.new[list2] |> MapSet.subset?[MapSet.new[list1]] falseThis will run in O[n log n] time as opposed to Kernel.--/2 which runs in O[n^2]. [This won't make a significant difference for small lists though.]
Check if length[list2 -- list1] is equal to zero
You can use MapSet.equal?:
iex[1]> MapSet.equal?[MapSet.new[list1], MapSet.new[list2]] true iex[2]> list1 = [1,2,3,4,5,6,7] [1, 2, 3, 4, 5, 6, 7] iex[3]> list2 = [3,4,5] [3, 4, 5] iex[4]> MapSet.equal?[MapSet.new[list1], MapSet.new[list2]] falseComments
Theo
- 2020/12/24
Now the loop runs exactly 19 times - much better! Another thing: your code checks if binary==1 . Is it what you want? If so, Python's equal operator
Sekani
- 2018/7/3
Individual elements are equal if their values are equal, not if they refer to the same object. 1. Compare two List objects for equality, with regard to order post code in comments using C, C++, Java, Python, JavaScript, C#, PHP and many more
Erick
- 2018/5/9
5. The use of type[] and help[] function of python 6. List in python 7. Numpy array[], shape. 8. Accessing an element of array or whole row/column A[1,:] Lecture site: //sites.google.com
Davis
- 2021/1/27
The cmp[] function is used to compare two elements or lists and return a value based on the arguments passed. In this tutorial you will learn
Ambrose
- 2015/8/19
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Ryan
- 2017/4/14
The difference between two lists [say list1 and list2] can be found using the In case you want the difference recursively, I have written a package for python: Using SequenceMather from difflib you can compare two lists like diff does.
Josue
- 2020/7/24
Python Difference Between Two Lists. Lists in Python can be performed in different ways, but it depends on the outcome required. Two popular methods of comparison are set[] and cmp[]. The set[] function creates an object that is a set object. The cmp[] function is used to compare two elements or lists and return a value based on the arguments passed.
Dennis
- 2021/4/7
Using sum[] + zip[] , we can get sum of one of the list as summation of 1 if both the index in two lists have equal elements, and then compare that number with size
Roberts
- 2020/1/20
What is the simplest way to compare two NumPy arrays for equality [where equality is defined as: A = B iff for all indices i: A[i] == B[i]]? Simply using == gives me a boolean array: >>> numpy.array[[1,1,1]] == numpy.array[[1,1,1]] array[[ True, True, True], dtype=bool]
Shkodra
- 2019/2/24
and return a value based on the arguments passed.
Casey
- 2015/4/7
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Damon
- 2016/5/21
Python code t get difference of two lists. # Using set[]. def Diff[li1, li2]:. return [ list [ set [li1] - set [li2]]]. # Driver Code. li1 = [ 10 , 15 , 20 , 25 , 30 , 35 , 40 ].
Blaze
- 2020/6/25
How do you check if two elements in a list are the same python?
Jesus
- 2017/6/21
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Keenan
- 2015/9/20
A list is a container which holds comma-separated values [items or Find largest and the smallest items in a list; Compare two lists in Python? Nested lists in Python; How can I get the index of an element contained in the list?
Kendrick
- 2016/9/27
There are two ways I'll show you [there are probably a lot more using NumPy]:. First method: chaining operations. You can use "masking"
Russell
- 2015/5/1
Strings are the set of characters. In Python, String Comparison can be easily performed with the help of Comparison Operator. Like - ==, !=, , = Operator.
Seven
- 2017/8/10
. Ordering is taken into account then. If you want to just check if they are identical or not, a == b should give you true / false with ordering taken into account. Here, c will contain an array with 3 elements all of which are true [for your example].
Layne
- 2019/1/12
The == operator compares by checking for equality : if we compare the two person objects above using the == operator, wed get both persons are equal as an answer, since they are carrying the
Gabriel
- 2016/12/27
Python code to get difference of two lists # Using set[] def Diff[A, B]: print["Difference of two lists ::>"] return [list[set[A] - set[B]]] # Driver Code
Aidan
- 2017/9/4
If you want a set of items in either list but not both lists use the symmetric difference operator '^'. [1,2,3,4,5] ^ [3,4,5,6,7] = [1,2,6,7] The symmetric difference operator, assuming it does what you want, also has the advantage of being commutative.
Carlos
- 2021/5/31
A set is an unordered collection with no duplicate elements. Set objects also support mathematical operations like union, intersection, difference,
Thaddeus
- 2017/12/18
Python list method cmp[] compares elements of two lists. Syntax. Following is the syntax for cmp[] method cmp[list1, list2] Parameters. list1 This is the first list to be compared. list2 This is the second list to be compared. Return Value. If elements are of the same type, perform the compare and return the result.
Curtis
- 2017/5/28
We discuss some ways to compute a list consisting of elements that are successive difference in the list. Method #1 : Using list comprehension. Naive method can
Ross
- 2016/5/11
eTour.com is the newest place to search, delivering top results from across the web. Content updated daily for learn python programming.
Thanasi
- 2015/12/31
Description. Python list method cmp[] compares elements of two lists. If elements are of the same type, perform the compare and return the result. If elements
Bowen
- 2016/1/10
To some extent list in the python are very similar to the Array in C with one difference that all the item belonging to the array are of same data type while in list all the item can be of different data type. Thus similarly to the two array comparison two list can also be compared as follows: code is written in Python 2.7.14
White
- 2017/5/17
comprehension.
Reuben
- 2020/6/10
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Milo
- 2021/2/12
.
Carlos
- 2016/3/14
another a bit more functional way to check list equality for list 1 [lst1] and list 2 [lst2] where objects have depth one and which keeps the order is: all[i == j for i, j in zip[lst1, lst2]] share | improve this answer | follow | | | |
Jackson
- 2016/5/30
I know that I can use a looping statement to check for each individual This is because Python is searching for that list as it is, 2, 3, 6 in
Andrew
- 2015/6/28
There are many ways to compare two lists in python and return their matches some of the important methods are as follows:- a = [1, 2, 3, 4, 5].
Daniel
- 2018/5/18
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Casen
- 2019/3/24
[temp1, temp2] . Both will give the result ['Four', 'Three'] .
Canaan
- 2020/9/6
Python any [] function checks if any Element of given Iterable is True. Lets use it to check if any string element in list is of length 5 i.e. ''' check if element exist in list based on custom logic Check if any string with length 5 exist in List ''' result = any [len [elem] == 5 for elem in listOfStrings] if result: print ["Yes, string
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