2024 Get index of max item in list python

Get index of max item in list python

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WebMay 6, 2011 · The inputs you are giving to list.index never change, it's always the same list and the same search value. When you call test_list_index_func with increasing values, it isn't changing the input size to list.index, it's just changing the number of times that the exact same operation is performed. Doing that will always show a linear pattern, for ... WebSep 24, 2024 · from operator import itemgetter my_list = [3.5, 1.6, 2.4, 5.6, 8.9] result = [p [1] for p in sorted (sorted (enumerate (my_list), key = itemgetter (1)) [-3:], key = itemgetter (0))] print (result) Output: [3.5, 5.6, 8.9] Share Improve this answer Follow edited Sep 23, 2024 at 21:34 answered Sep 23, 2024 at 21:23 DjaouadNM 21.8k 4 32 54

Find last index of element in list with duplicate elements python

WebAug 17, 2024 · How to find the index of an element or items in a list. In this article, we will cover different examples to find the index, such as: Find the index of the element. … Web131 sorted (range (len (a)), key=lambda i: a [i]) [-2:] or sorted (range (len (a)), key=lambda i: a [i], reverse=True) [:2] or import operator zip (*sorted (enumerate (a), key=operator.itemgetter (1))) [0] [-2:] or (for long lists), consider using heapq.nlargest zip (*heapq.nlargest (2, enumerate (a), key=operator.itemgetter (1))) [0] Share marlowe services

Get the index of an item in Python List – 3 Easy Methods

WebApr 30, 2015 · This works to get the column but max(x.idxmax()) only returns the numerical maximum of the indices themselves, not the index of the maximum value in the table (just got lucky in this example because everything else is 0's). An alternative is: s = x.max()[x.max() == x.max(index=1).max()].index s = str(s[0]) max_index = x.idxmax()[s] WebJun 5, 2013 · This method finds the index of the maximum element of any iterable and does not require any external imports: def argmax (iterable): return max (enumerate (iterable), key=lambda x: x [1]) [0] Share. Improve this answer. Follow. answered Nov 4, 2014 at 1:14. 1''. marlowes estate agents

Finding the index of the value which is the min or max in Python

Python List index() - GeeksforGeeks

WebJul 17, 2012 · Python Finding Index of Maximum in List. def main (): a = [2,1,5,234,3,44,7,6,4,5,9,11,12,14,13] max = 0 for number in a: if number > max: max = number print max if __name__ == '__main__': main () I am able to get the maximum … WebApr 11, 2024 · Get the index of the max value in the list using the loop. Here we are given a list and our task is to find the index of the maximum element so we are finding the … marlowesfWebOct 21, 2010 · >>> list (enumerate (a)) [ (0, 3), (1, 2), (2, 1), (3, 4), (4, 5)] At this point, we can extract the position of max with >>> max (enumerate (a), key= (lambda x: x [1])) (4, 5) The above tells us, the maximum is in the position 4 and his value is 5. nba top 10 plays of the night december 3 2021

"WebOct 22, 2015 · 1. As others have mentioned, you can answer this inquiry in more general terms (even without additional libraries). maxval = max (map (max, resultlist)) print (maxval) This takes the inner list with the maximum value, then maps the max function on that inner list to find the maximum value and stores it in maxval. " - Get index of max item in list python

Get index of max item in list python

python - Find the greatest (largest, maximum) number in a list of ...

Webnumpy.argmax. #. Returns the indices of the maximum values along an axis. Input array. By default, the index is into the flattened array, otherwise along the specified axis. If provided, the result will be inserted into this array. It should be of the appropriate shape and dtype. If this is set to True, the axes which are reduced are left in ... WebFeb 9, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

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WebTeams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams WebApr 14, 2012 · In case you want to get the indices instead of the corresponding elements in another list, I made a function to sort the indices by list values. def sort_index (lst, rev=True): index = range (len (lst)) s = sorted (index, reverse=rev, key=lambda i: lst [i]) return s Output Let's try sorting the indices of a sample list.

WebMar 28, 2024 · Method 2: Using the inbuilt function. Python’s inbuilt function allows us to find it in one line, we can find the minimum in the list using the min () function and then use the index () function to find out the index of that minimum element. Similarly we can do the same for finding out the maximum element using the max () function and then ... WebUse max (): Using itemgetter (): In [53]: lis= [ (101, 153), (255, 827), (361, 961)] In [81]: from operator import itemgetter In [82]: max (lis,key=itemgetter (1)) [0] #faster solution Out [82]: 361 using lambda: In [54]: max (lis,key=lambda item:item [1]) Out [54]: (361, 961) In [55]: max (lis,key=lambda item:item [1]) [0] Out [55]: 361

WebAug 30, 2015 · Add all the values in the list to a set. This will ensure you have each value only once. Sort the set. Find the index of the top three values in the set in the original list. WebI am surprised no-one has mentioned the simplest solution, max () with the key list.count: max (lst,key=lst.count) Example: >>> lst = [1, 2, 45, 55, 5, 4, 4, 4, 4, 4, 4, 5456, 56, 6, 7, 67] >>> max (lst,key=lst.count) 4 This works in Python 3 or 2, but note that it only returns the most frequent item and not also the frequency.

WebJul 13, 2024 · In this article, we shall be looking into how in a python list, we can find the max index. 1. Finding max index using for loop Finding the maximum index using a for loop is the most basic approach. 1 2 3 4 5 6 …

WebWith most optimize way with respect to time and space complexity: Step-1: Start travelling the original array from last, Step-2: Once you find the given element. Step-3: Return the index = l - i -1; where l = total length of the array, i = index of the element in step-2. – ArunDhwaj IIITH. Sep 4, 2024 at 17:37. nba top 10 plays of the night 2023WebJul 7, 2015 · To get all duplicates, you can use the below method, but it is not very efficient. If efficiency is important you should consider Ignacio's solution instead. >>> dict ( (x, indices (List, x)) for x in set (List) if List.count (x) > 1) {'A': [0, 2]} As for solving it using the index method of list instead, that method takes a second optional ... marlowes fish and chipsWebNov 11, 2009 · How do I get the length of a list? To find the number of elements in a list, use the builtin function len: items = [] items.append ("apple") items.append ("orange") items.append ("banana") And now: len (items) returns 3. Explanation Everything in Python is an object, including lists. All objects have a header of some sort in the C implementation. nba top 10 plays 31/10/22WebAug 17, 2024 · Python index () is an inbuilt function in Python, which searches for a given element from the start of the list and returns the index of the first occurrence. How to find the index of an element or items in a list In this article, we will cover different examples to find the index, such as: Find the index of the element nba top 10 plays last nightWebMay 23, 2024 · Find the Index of Max Value in a List Using the max() Function and index() Method. To write a more pythonic code, you can use the max() function and the index() … marlowe security systemsWebFeb 20, 2014 · Warning: With the list comprehension max is run for every iteration of the loop which is inefficient. However, it'd be fine to calculate it outside like: max_a = max (a); max_inds = [i for i, x in enumerate (a) if x == max_a]. – Matthew D. Scholefield Jan 31, 2024 at 18:17 Add a comment 1 marlowe seattle apartmentsWebJul 21, 2024 · Using List comprehension, we can get the index values i.e. position of all the occurrences of an item in the List. Example: lst = [10,20,30,10,50,10,45,10] print ("List : … nba top 10 plays of the night october 26 2021