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1. Top results related to sort an array in python

   • Sort an array based on another array in Python

     Top Answer

     Answered Sep 26, 2022 · 1 votes

     Something like this ?

     f = [12, 3, 5, 45, 2]g = [9, 7, 8, 3, 4]m = list(x for _, x in sorted(zip(f, g), reverse=True))print(m) # [3, 9, 8, 7, 4]-

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     1/5

   • sort an array by row in python

     Top Answer

     Answered Apr 29, 2016 · 3 votes

     I assume that arr is a numpy array? I haven't seen the syntax arr[:,1] in any other context in python. It would be worth mentioning this in your question!

     Assuming this is the case, then you should be using

     arr.sort(axis=0)-

     to sort by column and

     arr.sort(axis=1)-

     to sort by row. (Both sort in-place, i.e. change the value of arr. If you don't want this you can copy arr into another variable first, and apply sort to that.)

     If you want to sort just a single row (in this case, the second one) then

     arr[1,:].sort()-

     works.

     Edit: I now understand what problem you are trying to solve. You would like to reorder the columns in the matrix so that the nth row goes in increasing order. You can do this simply by

     arr[:,arr[1,:].argsort()]-

     (where here we're sorting by the 2nd row).

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     2/5

   • Sort an array of tuples by product in python

     Top Answer

     Answered Oct 24, 2013 · 12 votes

     Use the key argument of sorted

     /list.sort

     to specify a function for computing the product, and set the reverse argument to True to make the results descending rather than ascending, e.g.:

     from operator import mulprint sorted([(3,2,3), (2,2,2), (6,4,1)], key=lambda tup: reduce(mul, tup), reverse=True)

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     3/5

   • Python Program to Sort an array in wave form

     Given an unsorted array of integers, sort the array into a wave like array. An array ‘arr[0..n-1]’ is sorted in wave form if arr[0] >= arr[1] <= arr[2] >= arr[3] <= arr[4] >= …..

     Examples: 

     Input: arr[] = {10, 5, 6, 3, 2, 20, 100, 80} Output: arr[] = {10, 5, 6, 2, 20, 3, 100, 80} OR {20, 5, 10, 2, 80, 6, 100, 3} OR any other array that is in wave form Input: arr[] = {20, 10, 8, 6, 4, 2} Output: arr[] = {20, 8, 10, 4, 6, 2} OR {10, 8, 20, 2, 6, 4} OR any other array that is in wave form Input: arr[] = {2, 4, 6, 8, 10, 20} Output: arr[] = {4, 2, 8, 6, 20, 10} OR any other array that is in wave form Input: arr[] = {3, 6, 5, 10, 7, 20} Output: arr[] = {6, 3, 10, 5, 20, 7} OR any other array that is in wave form

     A Simple Solution is to use sorting. First sort the input array, then swap all adjacent elements. For example, let the input array be {3, 6, 5, 10, 7, 20}. After sorting,...

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     4/5

   • Python Program to Sort an array in wave form

     Given an unsorted array of integers, sort the array into a wave like array. An array ‘arr[0..n-1]’ is sorted in wave form if arr[0] >= arr[1] <= arr[2] >= arr[3] <= arr[4] >= …..

     Examples: 

     Input: arr[] = {10, 5, 6, 3, 2, 20, 100, 80} Output: arr[] = {10, 5, 6, 2, 20, 3, 100, 80} OR {20, 5, 10, 2, 80, 6, 100, 3} OR any other array that is in wave form Input: arr[] = {20, 10, 8, 6, 4, 2} Output: arr[] = {20, 8, 10, 4, 6, 2} OR {10, 8, 20, 2, 6, 4} OR any other array that is in wave form Input: arr[] = {2, 4, 6, 8, 10, 20} Output: arr[] = {4, 2, 8, 6, 20, 10} OR any other array that is in wave form Input: arr[] = {3, 6, 5, 10, 7, 20} Output: arr[] = {6, 3, 10, 5, 20, 7} OR any other array that is in wave form

     A Simple Solution is to use sorting. First sort the input array, then swap all adjacent elements. For example, let the input array be {3, 6, 5, 10, 7, 20}. After sorting,...

     Check all answers on Geeksforgeeks

     5/5

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2. www.geeksforgeeks.org · sort-in-pythonsort() in Python - GeeksforGeeks

   www.geeksforgeeks.org · sort-in-python

   

   Jul 25, 2024 · Sort() in Python using Sorting List in Ascending Order. The `sort()` method in Python is used to sort a list of elements in ascending order. It modifies the original list in-place, rearranging its elements to be in increasing numerical or lexicographical order.

   • Video Duration: 7 min

3. Searches related to sort an array in python

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4. realpython.com · python-sortHow to Use sorted() and .sort() in Python – Real Python

   realpython.com · python-sort

   

   Learn how to sort various types of data in different data structures, customize the order, and work with two different methods of sorting in Python. Compare sorted() and .sort(), and see examples of key, reverse, and case arguments.

5. www.askpython.com · python · arrayHow to Sort Array in Python - AskPython

   www.askpython.com · python · array

   

   Dec 16, 2019 · Learn different sorting algorithms for Python arrays, such as sorted(), MergeSort and QuickSort. See code examples, output and explanations for each method.

6. docs.python.org · 3 · howtoSorting Techniques — Python 3.12.6 documentation

   docs.python.org · 3 · howto

   

   2 days ago · Python lists have a built-in list.sort () method that modifies the list in-place. There is also a sorted () built-in function that builds a new sorted list from an iterable. In this document, we explore the various techniques for sorting data using Python.

7. diveintopython.org · learn · variablesArrays in Python: Sorting, Shuffling, Appending ...

   diveintopython.org · learn · variables

   

   May 3, 2024 · How to Get a Sorted Array in Python. In Python, you can sort an array (or list) using the sorted() function. The sorted() function takes an iterable as input and returns a new sorted list containing the elements of the original iterable. Here's an example of how to use sorted() for sorting an array:

8. realpython.com · sorting-algorithms-pythonSorting Algorithms in Python

   realpython.com · sorting-algorithms-python

   

   Python. >>> array = [8, 2, 6, 4, 5] >>> sorted(array) [2, 4, 5, 6, 8] You can use sorted() to sort any list as long as the values inside are comparable. Note: For a deeper dive into how Python’s built-in sorting functionality works, check out How to Use sorted () and .sort () in Python and Sorting Data With Python.

9. People also ask

   How to sort an array in Python?

   • In Python, you can sort an array (or list) using the sorted () function. The sorted () function takes an iterable as input and returns a new sorted list containing the elements of the original iterable. Here's an example of how to use sorted () for sorting an array:

   Arrays in Python: Sorting, Shuffling, Appending, Concatenating, and More

   diveintopython.org/learn/variables/array/basic-operations

   See all results for this question

   How to sort data using Python?

   • There is also a sorted() built-in function that builds a new sorted list from an iterable. In this document, we explore the various techniques for sorting data using Python. A simple ascending sort is very easy: just call the sorted() function. It returns a new sorted list: You can also use the list.sort() method.

   Sorting Techniques — Python 3.12.5 documentation

   docs.python.org/3/howto/sorting.html

   See all results for this question

   How to sort a list in descending order in Python?

   • To sort a list in descending order, set the reverse parameter to True of the sort () function in Python. Example : In this example code defines three lists of different types (integers, floating-point numbers, and strings), sorts them in descending order using the `sort` method with the `reverse=True` parameter, and then prints the sorted lists.

   sort() in Python - GeeksforGeeks

   www.geeksforgeeks.org/sort-in-python/

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   How does a sorted array work?

   • Since this implementation sorts the array in ascending order, each step “bubbles” the largest element to the end of the array. This means that each iteration takes fewer steps than the previous iteration because a continuously larger portion of the array is sorted. The loops in lines 4 and 10 determine the way the algorithm runs through the list.

   Sorting Algorithms in Python

   realpython.com/sorting-algorithms-python/

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10. www.freecodecamp.org · news · the-python-sort-listThe Python Sort List Array Method – Ascending and Descending ...

    www.freecodecamp.org · news · the-python-sort-list

    

    Apr 12, 2020 · Learn how to use the sort() method to sort a list in place in Python. See how to customize the sorting order, compare the elements, and use lambda functions with examples.